./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d47c8696b49948f6f8f53dd9eda6f4e0281717fd9a29e264a19ded5493fa577 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:12:12,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:12:12,889 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:12:12,893 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:12:12,893 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:12:12,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:12:12,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:12:12,906 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:12:12,907 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:12:12,907 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:12:12,907 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:12:12,907 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:12:12,907 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:12:12,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:12:12,907 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:12:12,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:12:12,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:12:12,908 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:12:12,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:12:12,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:12:12,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:12:12,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:12:12,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:12:12,908 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:12:12,908 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:12:12,908 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:12:12,909 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:12:12,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:12:12,909 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:12:12,909 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:12:12,909 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:12:12,909 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:12:12,909 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:12:12,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:12:12,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:12:12,909 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:12:12,910 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:12:12,910 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:12:12,910 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:12:12,910 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:12:12,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:12:12,910 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:12:12,910 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:12:12,911 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:12:12,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:12:12,911 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d47c8696b49948f6f8f53dd9eda6f4e0281717fd9a29e264a19ded5493fa577 [2025-02-08 14:12:13,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:12:13,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:12:13,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:12:13,156 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:12:13,156 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:12:13,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2025-02-08 14:12:14,266 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ffd5d7f4d/f68b59f06ecc461899a6d82ce1ded685/FLAGfc03dbfaa [2025-02-08 14:12:14,519 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:12:14,520 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum2.wvr.c [2025-02-08 14:12:14,528 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ffd5d7f4d/f68b59f06ecc461899a6d82ce1ded685/FLAGfc03dbfaa [2025-02-08 14:12:14,541 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ffd5d7f4d/f68b59f06ecc461899a6d82ce1ded685 [2025-02-08 14:12:14,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:12:14,544 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:12:14,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:12:14,545 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:12:14,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:12:14,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:12:14" (1/1) ... [2025-02-08 14:12:14,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7850b508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14, skipping insertion in model container [2025-02-08 14:12:14,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:12:14" (1/1) ... [2025-02-08 14:12:14,565 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:12:14,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:12:14,687 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:12:14,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:12:14,712 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:12:14,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14 WrapperNode [2025-02-08 14:12:14,713 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:12:14,714 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:12:14,714 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:12:14,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:12:14,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14" (1/1) ... [2025-02-08 14:12:14,726 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14" (1/1) ... [2025-02-08 14:12:14,743 INFO L138 Inliner]: procedures = 24, calls = 38, calls flagged for inlining = 17, calls inlined = 29, statements flattened = 345 [2025-02-08 14:12:14,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:12:14,744 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:12:14,744 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:12:14,744 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:12:14,750 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14" (1/1) ... [2025-02-08 14:12:14,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14" (1/1) ... [2025-02-08 14:12:14,753 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14" (1/1) ... [2025-02-08 14:12:14,773 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2025-02-08 14:12:14,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14" (1/1) ... [2025-02-08 14:12:14,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14" (1/1) ... [2025-02-08 14:12:14,780 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14" (1/1) ... [2025-02-08 14:12:14,781 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14" (1/1) ... [2025-02-08 14:12:14,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14" (1/1) ... [2025-02-08 14:12:14,783 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14" (1/1) ... [2025-02-08 14:12:14,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:12:14,785 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:12:14,785 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:12:14,785 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:12:14,786 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14" (1/1) ... [2025-02-08 14:12:14,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:12:14,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:14,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:12:14,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:12:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:12:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 14:12:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 14:12:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 14:12:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 14:12:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 14:12:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 14:12:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:12:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:12:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:12:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:12:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 14:12:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 14:12:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 14:12:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:12:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:12:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:12:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:12:14,835 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:12:14,914 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:12:14,915 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:12:15,076 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L36: assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; [2025-02-08 14:12:15,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L36-1: assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; [2025-02-08 14:12:15,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37: assume 0 == assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37: assume !(0 == assume_abort_if_not_~cond#1); [2025-02-08 14:12:15,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37-1: assume false; [2025-02-08 14:12:15,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37-2: assume 0 == assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37-2: assume !(0 == assume_abort_if_not_~cond#1); [2025-02-08 14:12:15,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37-3: assume false; [2025-02-08 14:12:15,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L113: plus_~b#1 := plus_#in~b#1; [2025-02-08 14:12:15,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L113-1: plus_~a#1 := plus_#in~a#1; [2025-02-08 14:12:15,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114: assume { :end_inline_assume_abort_if_not } true;havoc plus_#t~short29#1; [2025-02-08 14:12:15,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-1: havoc assume_abort_if_not_#in~cond#1; [2025-02-08 14:12:15,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-2: havoc assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,077 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L48-1: havoc #t~post5#1; [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-3: havoc assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L48-2: assume 1 + #t~post5#1 <= 2147483647; [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L48-2: assume !(1 + #t~post5#1 <= 2147483647); [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-4: assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if plus_#t~short29#1 then 1 else 0); [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L48-3: ~i~0#1 := 1 + #t~post5#1; [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-5: assume -2147483648 - plus_~b#1 <= 9223372036854775807; [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-5: assume !(-2147483648 - plus_~b#1 <= 9223372036854775807); [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L48-4: assume 1 + #t~post5#1 >= -2147483648; [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L48-4: assume !(1 + #t~post5#1 >= -2147483648); [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-6: plus_#t~short29#1 := plus_~a#1 >= -2147483648 - plus_~b#1; [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L48-5: #t~post5#1 := ~i~0#1; [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-7: assume -2147483648 - plus_~b#1 >= -9223372036854775808; [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-7: assume !(-2147483648 - plus_~b#1 >= -9223372036854775808); [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-8: assume plus_#t~short29#1; [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-8: assume !plus_#t~short29#1; [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-9: plus_#t~short29#1 := plus_~b#1 >= 0; [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115: assume { :end_inline_assume_abort_if_not } true;havoc plus_#t~short30#1; [2025-02-08 14:12:15,078 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-1: havoc assume_abort_if_not_#in~cond#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-2: havoc assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-3: havoc assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-4: assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if plus_#t~short30#1 then 1 else 0); [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-5: assume 2147483647 - plus_~b#1 <= 2147483647; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-5: assume !(2147483647 - plus_~b#1 <= 2147483647); [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-6: plus_#t~short30#1 := plus_~a#1 <= 2147483647 - plus_~b#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-7: assume 2147483647 - plus_~b#1 >= -2147483648; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-7: assume !(2147483647 - plus_~b#1 >= -2147483648); [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-8: assume plus_#t~short30#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-8: assume !plus_#t~short30#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-9: plus_#t~short30#1 := plus_~b#1 <= 0; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-1: assume plus_~a#1 + plus_~b#1 <= 2147483647; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-1: assume !(plus_~a#1 + plus_~b#1 <= 2147483647); [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50: havoc #t~ret4#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-2: plus_#res#1 := plus_~a#1 + plus_~b#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-1: havoc #t~ret3#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-3: assume plus_~a#1 + plus_~b#1 >= -2147483648; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-3: assume !(plus_~a#1 + plus_~b#1 >= -2147483648); [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-2: havoc #t~mem2#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-3: havoc #t~mem1#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-4: ~res1~0 := #t~ret4#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-5: assume { :end_inline_plus } true;assume -2147483648 <= #t~ret4#1 && #t~ret4#1 <= 2147483647; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-6: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-7: havoc plus_#t~short29#1, plus_#t~short30#1, plus_~a#1, plus_~b#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-8: #t~ret4#1 := plus_#res#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-9: havoc plus_#t~short29#1, plus_#t~short30#1, plus_~a#1, plus_~b#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-10: havoc plus_#res#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-11: assume { :begin_inline_plus } true;plus_#in~a#1, plus_#in~b#1 := ~res1~0, #t~ret3#1; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-12: assume { :end_inline_plus } true;assume -2147483648 <= #t~ret3#1 && #t~ret3#1 <= 2147483647; [2025-02-08 14:12:15,079 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-13: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 14:12:15,080 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-14: havoc plus_#t~short29#1, plus_#t~short30#1, plus_~a#1, plus_~b#1; [2025-02-08 14:12:15,080 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-15: #t~ret3#1 := plus_#res#1; [2025-02-08 14:12:15,080 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L51: [2025-02-08 14:12:15,185 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60: havoc #t~ret9#1; [2025-02-08 14:12:15,186 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-1: havoc #t~ret8#1; [2025-02-08 14:12:15,186 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-2: havoc #t~mem7#1; [2025-02-08 14:12:15,186 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-3: havoc #t~mem6#1; [2025-02-08 14:12:15,186 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-4: ~res2~0 := #t~ret9#1; [2025-02-08 14:12:15,186 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-5: assume { :end_inline_plus } true;assume -2147483648 <= #t~ret9#1 && #t~ret9#1 <= 2147483647; [2025-02-08 14:12:15,186 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-6: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 14:12:15,186 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-7: havoc plus_#t~short29#1, plus_#t~short30#1, plus_~a#1, plus_~b#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-8: #t~ret9#1 := plus_#res#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-9: havoc plus_#t~short29#1, plus_#t~short30#1, plus_~a#1, plus_~b#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-10: havoc plus_#res#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-11: assume { :begin_inline_plus } true;plus_#in~a#1, plus_#in~b#1 := ~res2~0, #t~ret8#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-12: assume { :end_inline_plus } true;assume -2147483648 <= #t~ret8#1 && #t~ret8#1 <= 2147483647; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-13: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-14: havoc plus_#t~short29#1, plus_#t~short30#1, plus_~a#1, plus_~b#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L60-15: #t~ret8#1 := plus_#res#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L36: assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L36-1: assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L61: [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37: assume 0 == assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37: assume !(0 == assume_abort_if_not_~cond#1); [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37-1: assume false; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37-2: assume 0 == assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37-2: assume !(0 == assume_abort_if_not_~cond#1); [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37-3: assume false; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L113: plus_~b#1 := plus_#in~b#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L113-1: plus_~a#1 := plus_#in~a#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114: assume { :end_inline_assume_abort_if_not } true;havoc plus_#t~short29#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-1: havoc assume_abort_if_not_#in~cond#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-2: havoc assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,187 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-3: havoc assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-4: assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if plus_#t~short29#1 then 1 else 0); [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-5: assume -2147483648 - plus_~b#1 <= 9223372036854775807; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-5: assume !(-2147483648 - plus_~b#1 <= 9223372036854775807); [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-6: plus_#t~short29#1 := plus_~a#1 >= -2147483648 - plus_~b#1; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-7: assume -2147483648 - plus_~b#1 >= -9223372036854775808; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-7: assume !(-2147483648 - plus_~b#1 >= -9223372036854775808); [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-8: assume plus_#t~short29#1; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-8: assume !plus_#t~short29#1; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-9: plus_#t~short29#1 := plus_~b#1 >= 0; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115: assume { :end_inline_assume_abort_if_not } true;havoc plus_#t~short30#1; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-1: havoc assume_abort_if_not_#in~cond#1; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-2: havoc assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-3: havoc assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-4: assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if plus_#t~short30#1 then 1 else 0); [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-5: assume 2147483647 - plus_~b#1 <= 2147483647; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-5: assume !(2147483647 - plus_~b#1 <= 2147483647); [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-6: plus_#t~short30#1 := plus_~a#1 <= 2147483647 - plus_~b#1; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-7: assume 2147483647 - plus_~b#1 >= -2147483648; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-7: assume !(2147483647 - plus_~b#1 >= -2147483648); [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-8: assume plus_#t~short30#1; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-8: assume !plus_#t~short30#1; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-9: plus_#t~short30#1 := plus_~b#1 <= 0; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L58-1: havoc #t~post10#1; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L58-2: assume 1 + #t~post10#1 <= 2147483647; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L58-2: assume !(1 + #t~post10#1 <= 2147483647); [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L58-3: ~i~1#1 := 1 + #t~post10#1; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L58-4: assume 1 + #t~post10#1 >= -2147483648; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L58-4: assume !(1 + #t~post10#1 >= -2147483648); [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L58-5: #t~post10#1 := ~i~1#1; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-1: assume plus_~a#1 + plus_~b#1 <= 2147483647; [2025-02-08 14:12:15,188 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-1: assume !(plus_~a#1 + plus_~b#1 <= 2147483647); [2025-02-08 14:12:15,189 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-2: plus_#res#1 := plus_~a#1 + plus_~b#1; [2025-02-08 14:12:15,189 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-3: assume plus_~a#1 + plus_~b#1 >= -2147483648; [2025-02-08 14:12:15,189 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-3: assume !(plus_~a#1 + plus_~b#1 >= -2147483648); [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-3: ~i~2#1 := 1 + #t~post15#1; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-4: assume 1 + #t~post15#1 >= -2147483648; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-4: assume !(1 + #t~post15#1 >= -2147483648); [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-5: #t~post15#1 := ~i~2#1; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L36: assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L36-1: assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70: havoc #t~ret14#1; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-1: havoc #t~ret13#1; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37: assume 0 == assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37: assume !(0 == assume_abort_if_not_~cond#1); [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-2: havoc #t~mem12#1; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37-1: assume false; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-3: havoc #t~mem11#1; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37-2: assume 0 == assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37-2: assume !(0 == assume_abort_if_not_~cond#1); [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-4: ~res2~0 := #t~ret14#1; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L37-3: assume false; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-5: assume { :end_inline_plus } true;assume -2147483648 <= #t~ret14#1 && #t~ret14#1 <= 2147483647; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-6: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-7: havoc plus_#t~short29#1, plus_#t~short30#1, plus_~a#1, plus_~b#1; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-8: #t~ret14#1 := plus_#res#1; [2025-02-08 14:12:15,276 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-9: havoc plus_#t~short29#1, plus_#t~short30#1, plus_~a#1, plus_~b#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-10: havoc plus_#res#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-11: assume { :begin_inline_plus } true;plus_#in~a#1, plus_#in~b#1 := ~res2~0, #t~ret13#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-12: assume { :end_inline_plus } true;assume -2147483648 <= #t~ret13#1 && #t~ret13#1 <= 2147483647; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-13: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-14: havoc plus_#t~short29#1, plus_#t~short30#1, plus_~a#1, plus_~b#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L70-15: #t~ret13#1 := plus_#res#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L71: [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L113: plus_~b#1 := plus_#in~b#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L113-1: plus_~a#1 := plus_#in~a#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114: assume { :end_inline_assume_abort_if_not } true;havoc plus_#t~short29#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-1: havoc assume_abort_if_not_#in~cond#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-2: havoc assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-3: havoc assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-4: assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if plus_#t~short29#1 then 1 else 0); [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-5: assume -2147483648 - plus_~b#1 <= 9223372036854775807; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-5: assume !(-2147483648 - plus_~b#1 <= 9223372036854775807); [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-6: plus_#t~short29#1 := plus_~a#1 >= -2147483648 - plus_~b#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-7: assume -2147483648 - plus_~b#1 >= -9223372036854775808; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-7: assume !(-2147483648 - plus_~b#1 >= -9223372036854775808); [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-8: assume plus_#t~short29#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-8: assume !plus_#t~short29#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L114-9: plus_#t~short29#1 := plus_~b#1 >= 0; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115: assume { :end_inline_assume_abort_if_not } true;havoc plus_#t~short30#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-1: havoc assume_abort_if_not_#in~cond#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-2: havoc assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-3: havoc assume_abort_if_not_~cond#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-4: assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if plus_#t~short30#1 then 1 else 0); [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-5: assume 2147483647 - plus_~b#1 <= 2147483647; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-5: assume !(2147483647 - plus_~b#1 <= 2147483647); [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-6: plus_#t~short30#1 := plus_~a#1 <= 2147483647 - plus_~b#1; [2025-02-08 14:12:15,277 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-7: assume 2147483647 - plus_~b#1 >= -2147483648; [2025-02-08 14:12:15,278 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-7: assume !(2147483647 - plus_~b#1 >= -2147483648); [2025-02-08 14:12:15,278 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-8: assume plus_#t~short30#1; [2025-02-08 14:12:15,278 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-8: assume !plus_#t~short30#1; [2025-02-08 14:12:15,278 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L115-9: plus_#t~short30#1 := plus_~b#1 <= 0; [2025-02-08 14:12:15,278 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-1: assume plus_~a#1 + plus_~b#1 <= 2147483647; [2025-02-08 14:12:15,278 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-1: assume !(plus_~a#1 + plus_~b#1 <= 2147483647); [2025-02-08 14:12:15,279 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-2: plus_#res#1 := plus_~a#1 + plus_~b#1; [2025-02-08 14:12:15,279 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-3: assume plus_~a#1 + plus_~b#1 >= -2147483648; [2025-02-08 14:12:15,279 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L116-3: assume !(plus_~a#1 + plus_~b#1 >= -2147483648); [2025-02-08 14:12:15,279 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-1: havoc #t~post15#1; [2025-02-08 14:12:15,279 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-2: assume 1 + #t~post15#1 <= 2147483647; [2025-02-08 14:12:15,279 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L68-2: assume !(1 + #t~post15#1 <= 2147483647); [2025-02-08 14:12:15,385 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:12:15,385 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:12:15,635 WARN L149 AtomicBlockAnalyzer]: Unexpected successor node of atomic block begin: L116-4 is not an error location. [2025-02-08 14:12:15,635 WARN L149 AtomicBlockAnalyzer]: Unexpected successor node of atomic block begin: L116-4 is not an error location. [2025-02-08 14:12:15,635 WARN L149 AtomicBlockAnalyzer]: Unexpected successor node of atomic block begin: L116-4 is not an error location. [2025-02-08 14:12:15,636 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:12:15,636 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:12:15,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:12:15 BoogieIcfgContainer [2025-02-08 14:12:15,636 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:12:15,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:12:15,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:12:15,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:12:15,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:12:14" (1/3) ... [2025-02-08 14:12:15,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e85897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:12:15, skipping insertion in model container [2025-02-08 14:12:15,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:12:14" (2/3) ... [2025-02-08 14:12:15,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e85897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:12:15, skipping insertion in model container [2025-02-08 14:12:15,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:12:15" (3/3) ... [2025-02-08 14:12:15,643 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum2.wvr.c [2025-02-08 14:12:15,654 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:12:15,655 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-array-sum2.wvr.c that has 4 procedures, 55 locations, 1 initial locations, 5 loop locations, and 46 error locations. [2025-02-08 14:12:15,655 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:12:15,738 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 14:12:15,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 56 transitions, 133 flow [2025-02-08 14:12:15,786 INFO L124 PetriNetUnfolderBase]: 2/53 cut-off events. [2025-02-08 14:12:15,789 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:12:15,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 53 events. 2/53 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 169 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2025-02-08 14:12:15,792 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 56 transitions, 133 flow [2025-02-08 14:12:15,794 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 51 transitions, 117 flow [2025-02-08 14:12:15,803 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:12:15,812 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1928c8c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:12:15,812 INFO L334 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2025-02-08 14:12:15,816 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:12:15,816 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-02-08 14:12:15,816 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:12:15,816 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:15,817 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 14:12:15,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:15,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:15,821 INFO L85 PathProgramCache]: Analyzing trace with hash 900243, now seen corresponding path program 1 times [2025-02-08 14:12:15,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:15,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379936575] [2025-02-08 14:12:15,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:15,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:15,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 14:12:15,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 14:12:15,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:15,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:16,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:16,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:16,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379936575] [2025-02-08 14:12:16,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379936575] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:12:16,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:12:16,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:12:16,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860516472] [2025-02-08 14:12:16,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:12:16,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:12:16,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:16,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:12:16,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:12:16,061 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 56 [2025-02-08 14:12:16,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 117 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:16,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:16,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 56 [2025-02-08 14:12:16,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:16,729 INFO L124 PetriNetUnfolderBase]: 2538/3877 cut-off events. [2025-02-08 14:12:16,729 INFO L125 PetriNetUnfolderBase]: For 151/151 co-relation queries the response was YES. [2025-02-08 14:12:16,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7891 conditions, 3877 events. 2538/3877 cut-off events. For 151/151 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 25180 event pairs, 2534 based on Foata normal form. 2/2060 useless extension candidates. Maximal degree in co-relation 7390. Up to 3787 conditions per place. [2025-02-08 14:12:16,749 INFO L140 encePairwiseOnDemand]: 39/56 looper letters, 39 selfloop transitions, 7 changer transitions 0/51 dead transitions. [2025-02-08 14:12:16,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 51 transitions, 209 flow [2025-02-08 14:12:16,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:12:16,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:12:16,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2025-02-08 14:12:16,759 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2025-02-08 14:12:16,760 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 117 flow. Second operand 4 states and 88 transitions. [2025-02-08 14:12:16,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 51 transitions, 209 flow [2025-02-08 14:12:16,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 51 transitions, 200 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 14:12:16,775 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 156 flow [2025-02-08 14:12:16,777 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2025-02-08 14:12:16,779 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, -5 predicate places. [2025-02-08 14:12:16,779 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 156 flow [2025-02-08 14:12:16,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:16,779 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:16,779 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-02-08 14:12:16,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:12:16,779 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:16,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:16,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1050142463, now seen corresponding path program 1 times [2025-02-08 14:12:16,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:16,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075745147] [2025-02-08 14:12:16,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:16,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:16,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:12:16,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:12:16,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:16,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:16,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:16,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:16,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075745147] [2025-02-08 14:12:16,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075745147] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:16,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903652353] [2025-02-08 14:12:16,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:16,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:16,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:16,889 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:16,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 14:12:16,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:12:16,969 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:12:16,969 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:16,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:16,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:12:16,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:17,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:17,001 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:12:17,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903652353] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:12:17,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:12:17,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-08 14:12:17,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45215245] [2025-02-08 14:12:17,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:12:17,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:12:17,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:17,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:12:17,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:12:17,016 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 56 [2025-02-08 14:12:17,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:17,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:17,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 56 [2025-02-08 14:12:17,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:17,476 INFO L124 PetriNetUnfolderBase]: 2538/3875 cut-off events. [2025-02-08 14:12:17,477 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2025-02-08 14:12:17,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7828 conditions, 3875 events. 2538/3875 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 25132 event pairs, 2534 based on Foata normal form. 2/2061 useless extension candidates. Maximal degree in co-relation 7778. Up to 3777 conditions per place. [2025-02-08 14:12:17,513 INFO L140 encePairwiseOnDemand]: 47/56 looper letters, 32 selfloop transitions, 12 changer transitions 0/49 dead transitions. [2025-02-08 14:12:17,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 49 transitions, 236 flow [2025-02-08 14:12:17,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:12:17,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:12:17,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2025-02-08 14:12:17,514 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.27976190476190477 [2025-02-08 14:12:17,515 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 156 flow. Second operand 6 states and 94 transitions. [2025-02-08 14:12:17,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 49 transitions, 236 flow [2025-02-08 14:12:17,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 49 transitions, 236 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:12:17,516 INFO L231 Difference]: Finished difference. Result has 57 places, 49 transitions, 172 flow [2025-02-08 14:12:17,516 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=172, PETRI_PLACES=57, PETRI_TRANSITIONS=49} [2025-02-08 14:12:17,516 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, -2 predicate places. [2025-02-08 14:12:17,516 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 172 flow [2025-02-08 14:12:17,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:17,517 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:17,517 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-02-08 14:12:17,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 14:12:17,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:17,717 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:17,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:17,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1805321205, now seen corresponding path program 1 times [2025-02-08 14:12:17,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:17,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223872958] [2025-02-08 14:12:17,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:17,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:17,726 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:12:17,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:12:17,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:17,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:17,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:17,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:17,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223872958] [2025-02-08 14:12:17,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223872958] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:17,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131497006] [2025-02-08 14:12:17,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:17,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:17,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:17,831 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:17,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 14:12:17,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:12:17,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:12:17,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:17,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:17,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:12:17,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:17,927 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:17,927 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:17,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:17,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131497006] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:17,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:17,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-08 14:12:17,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455199524] [2025-02-08 14:12:17,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:17,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 14:12:17,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:17,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 14:12:17,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 14:12:17,981 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 56 [2025-02-08 14:12:17,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 172 flow. Second operand has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:17,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:17,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 56 [2025-02-08 14:12:17,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:18,537 INFO L124 PetriNetUnfolderBase]: 2544/3899 cut-off events. [2025-02-08 14:12:18,537 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2025-02-08 14:12:18,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7922 conditions, 3899 events. 2544/3899 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 25408 event pairs, 2534 based on Foata normal form. 6/2088 useless extension candidates. Maximal degree in co-relation 7780. Up to 3788 conditions per place. [2025-02-08 14:12:18,554 INFO L140 encePairwiseOnDemand]: 47/56 looper letters, 37 selfloop transitions, 25 changer transitions 0/67 dead transitions. [2025-02-08 14:12:18,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 67 transitions, 410 flow [2025-02-08 14:12:18,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:12:18,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:12:18,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 148 transitions. [2025-02-08 14:12:18,557 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2642857142857143 [2025-02-08 14:12:18,557 INFO L175 Difference]: Start difference. First operand has 57 places, 49 transitions, 172 flow. Second operand 10 states and 148 transitions. [2025-02-08 14:12:18,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 67 transitions, 410 flow [2025-02-08 14:12:18,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 67 transitions, 352 flow, removed 12 selfloop flow, removed 5 redundant places. [2025-02-08 14:12:18,558 INFO L231 Difference]: Finished difference. Result has 64 places, 67 transitions, 312 flow [2025-02-08 14:12:18,559 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=312, PETRI_PLACES=64, PETRI_TRANSITIONS=67} [2025-02-08 14:12:18,559 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 5 predicate places. [2025-02-08 14:12:18,559 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 67 transitions, 312 flow [2025-02-08 14:12:18,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:18,559 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:18,559 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:18,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 14:12:18,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:18,762 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:18,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:18,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1737343237, now seen corresponding path program 1 times [2025-02-08 14:12:18,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:18,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518574780] [2025-02-08 14:12:18,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:18,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:18,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:12:18,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:12:18,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:18,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:18,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:18,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:18,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518574780] [2025-02-08 14:12:18,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518574780] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:12:18,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:12:18,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:12:18,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717158370] [2025-02-08 14:12:18,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:12:18,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:12:18,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:18,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:12:18,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:12:18,866 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2025-02-08 14:12:18,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 67 transitions, 312 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:18,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:18,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2025-02-08 14:12:18,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:19,232 INFO L124 PetriNetUnfolderBase]: 2543/3914 cut-off events. [2025-02-08 14:12:19,233 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2025-02-08 14:12:19,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7988 conditions, 3914 events. 2543/3914 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 25366 event pairs, 2534 based on Foata normal form. 5/2104 useless extension candidates. Maximal degree in co-relation 7895. Up to 3797 conditions per place. [2025-02-08 14:12:19,256 INFO L140 encePairwiseOnDemand]: 51/56 looper letters, 60 selfloop transitions, 9 changer transitions 0/76 dead transitions. [2025-02-08 14:12:19,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 76 transitions, 521 flow [2025-02-08 14:12:19,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:12:19,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:12:19,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2025-02-08 14:12:19,258 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38571428571428573 [2025-02-08 14:12:19,258 INFO L175 Difference]: Start difference. First operand has 64 places, 67 transitions, 312 flow. Second operand 5 states and 108 transitions. [2025-02-08 14:12:19,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 76 transitions, 521 flow [2025-02-08 14:12:19,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 76 transitions, 489 flow, removed 9 selfloop flow, removed 2 redundant places. [2025-02-08 14:12:19,262 INFO L231 Difference]: Finished difference. Result has 67 places, 67 transitions, 317 flow [2025-02-08 14:12:19,262 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=317, PETRI_PLACES=67, PETRI_TRANSITIONS=67} [2025-02-08 14:12:19,263 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 8 predicate places. [2025-02-08 14:12:19,263 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 67 transitions, 317 flow [2025-02-08 14:12:19,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:19,263 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:19,263 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:19,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:12:19,264 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:19,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:19,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1392021978, now seen corresponding path program 1 times [2025-02-08 14:12:19,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:19,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137590483] [2025-02-08 14:12:19,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:19,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:19,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:12:19,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:12:19,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:19,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:19,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:12:19,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:19,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137590483] [2025-02-08 14:12:19,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137590483] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:19,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270334910] [2025-02-08 14:12:19,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:19,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:19,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:19,585 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:19,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 14:12:19,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:12:19,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:12:19,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:19,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:19,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-02-08 14:12:19,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:19,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:12:19,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:12:19,732 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:19,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2025-02-08 14:12:19,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2025-02-08 14:12:19,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:12:19,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270334910] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:19,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:19,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2025-02-08 14:12:19,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874493744] [2025-02-08 14:12:19,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:19,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 14:12:19,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:19,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 14:12:19,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2025-02-08 14:12:19,802 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2025-02-08 14:12:19,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 67 transitions, 317 flow. Second operand has 13 states, 13 states have (on average 13.76923076923077) internal successors, (179), 13 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:19,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:19,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2025-02-08 14:12:19,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:20,276 INFO L124 PetriNetUnfolderBase]: 2223/3532 cut-off events. [2025-02-08 14:12:20,276 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2025-02-08 14:12:20,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7121 conditions, 3532 events. 2223/3532 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 24014 event pairs, 614 based on Foata normal form. 0/2056 useless extension candidates. Maximal degree in co-relation 7028. Up to 2330 conditions per place. [2025-02-08 14:12:20,290 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 62 selfloop transitions, 16 changer transitions 0/85 dead transitions. [2025-02-08 14:12:20,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 85 transitions, 512 flow [2025-02-08 14:12:20,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:12:20,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:12:20,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 144 transitions. [2025-02-08 14:12:20,292 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3673469387755102 [2025-02-08 14:12:20,292 INFO L175 Difference]: Start difference. First operand has 67 places, 67 transitions, 317 flow. Second operand 7 states and 144 transitions. [2025-02-08 14:12:20,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 85 transitions, 512 flow [2025-02-08 14:12:20,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 85 transitions, 502 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-08 14:12:20,295 INFO L231 Difference]: Finished difference. Result has 71 places, 66 transitions, 337 flow [2025-02-08 14:12:20,295 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=337, PETRI_PLACES=71, PETRI_TRANSITIONS=66} [2025-02-08 14:12:20,296 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 12 predicate places. [2025-02-08 14:12:20,297 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 66 transitions, 337 flow [2025-02-08 14:12:20,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.76923076923077) internal successors, (179), 13 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:20,298 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:20,298 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:20,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 14:12:20,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:20,498 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:20,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:20,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1392021979, now seen corresponding path program 1 times [2025-02-08 14:12:20,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:20,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281059389] [2025-02-08 14:12:20,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:20,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:20,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:12:20,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:12:20,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:20,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:20,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:12:20,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:20,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281059389] [2025-02-08 14:12:20,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281059389] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:20,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382668346] [2025-02-08 14:12:20,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:20,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:20,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:20,711 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:20,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 14:12:20,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:12:20,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:12:20,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:20,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:20,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-02-08 14:12:20,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:20,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:12:20,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:12:20,839 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:20,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2025-02-08 14:12:20,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2025-02-08 14:12:20,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:12:20,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382668346] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:20,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:20,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2025-02-08 14:12:20,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067515282] [2025-02-08 14:12:20,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:20,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 14:12:20,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:20,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 14:12:20,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2025-02-08 14:12:20,901 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2025-02-08 14:12:20,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 66 transitions, 337 flow. Second operand has 13 states, 13 states have (on average 13.76923076923077) internal successors, (179), 13 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:20,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:20,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2025-02-08 14:12:20,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:21,386 INFO L124 PetriNetUnfolderBase]: 1903/2946 cut-off events. [2025-02-08 14:12:21,386 INFO L125 PetriNetUnfolderBase]: For 367/367 co-relation queries the response was YES. [2025-02-08 14:12:21,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6354 conditions, 2946 events. 1903/2946 cut-off events. For 367/367 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 17188 event pairs, 919 based on Foata normal form. 0/1752 useless extension candidates. Maximal degree in co-relation 6259. Up to 1864 conditions per place. [2025-02-08 14:12:21,401 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 61 selfloop transitions, 16 changer transitions 0/84 dead transitions. [2025-02-08 14:12:21,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 84 transitions, 530 flow [2025-02-08 14:12:21,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:12:21,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:12:21,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 143 transitions. [2025-02-08 14:12:21,403 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3647959183673469 [2025-02-08 14:12:21,403 INFO L175 Difference]: Start difference. First operand has 71 places, 66 transitions, 337 flow. Second operand 7 states and 143 transitions. [2025-02-08 14:12:21,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 84 transitions, 530 flow [2025-02-08 14:12:21,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 84 transitions, 498 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-08 14:12:21,406 INFO L231 Difference]: Finished difference. Result has 70 places, 65 transitions, 335 flow [2025-02-08 14:12:21,406 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=335, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2025-02-08 14:12:21,407 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 11 predicate places. [2025-02-08 14:12:21,407 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 65 transitions, 335 flow [2025-02-08 14:12:21,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.76923076923077) internal successors, (179), 13 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:21,407 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:21,407 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:21,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 14:12:21,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-02-08 14:12:21,612 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:21,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:21,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1392021981, now seen corresponding path program 1 times [2025-02-08 14:12:21,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:21,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319252785] [2025-02-08 14:12:21,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:21,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:21,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:12:21,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:12:21,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:21,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:21,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:21,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:21,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319252785] [2025-02-08 14:12:21,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319252785] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:21,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661696425] [2025-02-08 14:12:21,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:21,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:21,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:21,942 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:21,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 14:12:22,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:12:22,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:12:22,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:22,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:22,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-08 14:12:22,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:22,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 14:12:22,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:12:22,069 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:12:22,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-08 14:12:22,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-02-08 14:12:22,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:22,122 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:22,239 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:12:22,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2025-02-08 14:12:22,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:12:22,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 35 [2025-02-08 14:12:22,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2025-02-08 14:12:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:22,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661696425] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:22,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:22,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2025-02-08 14:12:22,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198461540] [2025-02-08 14:12:22,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:22,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-08 14:12:22,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:22,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-08 14:12:22,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=188, Unknown=4, NotChecked=0, Total=240 [2025-02-08 14:12:22,297 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 56 [2025-02-08 14:12:22,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 65 transitions, 335 flow. Second operand has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:22,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:22,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 56 [2025-02-08 14:12:22,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:22,795 INFO L124 PetriNetUnfolderBase]: 1903/2920 cut-off events. [2025-02-08 14:12:22,795 INFO L125 PetriNetUnfolderBase]: For 247/247 co-relation queries the response was YES. [2025-02-08 14:12:22,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6328 conditions, 2920 events. 1903/2920 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 18718 event pairs, 614 based on Foata normal form. 0/1872 useless extension candidates. Maximal degree in co-relation 6233. Up to 1864 conditions per place. [2025-02-08 14:12:22,806 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 69 selfloop transitions, 17 changer transitions 0/92 dead transitions. [2025-02-08 14:12:22,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 92 transitions, 609 flow [2025-02-08 14:12:22,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:12:22,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:12:22,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 173 transitions. [2025-02-08 14:12:22,810 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.30892857142857144 [2025-02-08 14:12:22,810 INFO L175 Difference]: Start difference. First operand has 70 places, 65 transitions, 335 flow. Second operand 10 states and 173 transitions. [2025-02-08 14:12:22,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 92 transitions, 609 flow [2025-02-08 14:12:22,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 92 transitions, 575 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-08 14:12:22,813 INFO L231 Difference]: Finished difference. Result has 72 places, 65 transitions, 340 flow [2025-02-08 14:12:22,813 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=340, PETRI_PLACES=72, PETRI_TRANSITIONS=65} [2025-02-08 14:12:22,813 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 13 predicate places. [2025-02-08 14:12:22,814 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 65 transitions, 340 flow [2025-02-08 14:12:22,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:22,814 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:22,814 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:22,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 14:12:23,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:23,018 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:23,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:23,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1392021982, now seen corresponding path program 1 times [2025-02-08 14:12:23,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:23,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869660629] [2025-02-08 14:12:23,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:23,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:23,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:12:23,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:12:23,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:23,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:23,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:23,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:23,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869660629] [2025-02-08 14:12:23,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869660629] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:23,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585276112] [2025-02-08 14:12:23,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:23,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:23,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:23,322 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:23,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 14:12:23,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:12:23,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:12:23,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:23,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:23,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-08 14:12:23,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:23,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 14:12:23,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:12:23,437 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:12:23,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-08 14:12:23,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-08 14:12:23,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:23,480 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:23,516 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_104 (Array Int Int))) (< (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_104) c_~A~0.base) c_~A~0.offset) 2147483648)) is different from false [2025-02-08 14:12:23,560 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:12:23,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 23 [2025-02-08 14:12:23,567 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:12:23,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 29 [2025-02-08 14:12:23,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2025-02-08 14:12:23,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2025-02-08 14:12:23,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585276112] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:23,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:23,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 14 [2025-02-08 14:12:23,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521019703] [2025-02-08 14:12:23,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:23,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-08 14:12:23,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:23,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-08 14:12:23,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=167, Unknown=1, NotChecked=26, Total=240 [2025-02-08 14:12:23,610 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 56 [2025-02-08 14:12:23,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 65 transitions, 340 flow. Second operand has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:23,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:23,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 56 [2025-02-08 14:12:23,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:24,013 INFO L124 PetriNetUnfolderBase]: 1583/2454 cut-off events. [2025-02-08 14:12:24,013 INFO L125 PetriNetUnfolderBase]: For 367/367 co-relation queries the response was YES. [2025-02-08 14:12:24,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5379 conditions, 2454 events. 1583/2454 cut-off events. For 367/367 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 14062 event pairs, 749 based on Foata normal form. 0/1688 useless extension candidates. Maximal degree in co-relation 5284. Up to 1398 conditions per place. [2025-02-08 14:12:24,023 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 68 selfloop transitions, 17 changer transitions 0/91 dead transitions. [2025-02-08 14:12:24,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 91 transitions, 605 flow [2025-02-08 14:12:24,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:12:24,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:12:24,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 172 transitions. [2025-02-08 14:12:24,025 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.30714285714285716 [2025-02-08 14:12:24,025 INFO L175 Difference]: Start difference. First operand has 72 places, 65 transitions, 340 flow. Second operand 10 states and 172 transitions. [2025-02-08 14:12:24,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 91 transitions, 605 flow [2025-02-08 14:12:24,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 91 transitions, 573 flow, removed 4 selfloop flow, removed 6 redundant places. [2025-02-08 14:12:24,028 INFO L231 Difference]: Finished difference. Result has 74 places, 64 transitions, 340 flow [2025-02-08 14:12:24,029 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=340, PETRI_PLACES=74, PETRI_TRANSITIONS=64} [2025-02-08 14:12:24,030 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 15 predicate places. [2025-02-08 14:12:24,030 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 64 transitions, 340 flow [2025-02-08 14:12:24,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 12.875) internal successors, (206), 16 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:24,032 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:24,032 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:24,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 14:12:24,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-08 14:12:24,233 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:24,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:24,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1986290810, now seen corresponding path program 1 times [2025-02-08 14:12:24,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:24,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465246754] [2025-02-08 14:12:24,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:24,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:24,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:12:24,246 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:12:24,246 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:24,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:24,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:12:24,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:24,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465246754] [2025-02-08 14:12:24,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465246754] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:24,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118642784] [2025-02-08 14:12:24,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:24,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:24,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:24,341 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:24,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 14:12:24,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:12:24,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:12:24,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:24,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:24,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 14:12:24,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:24,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:12:24,464 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:24,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:12:24,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118642784] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:24,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:24,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2025-02-08 14:12:24,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813116268] [2025-02-08 14:12:24,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:24,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-08 14:12:24,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:24,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-08 14:12:24,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2025-02-08 14:12:24,616 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 56 [2025-02-08 14:12:24,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 64 transitions, 340 flow. Second operand has 17 states, 17 states have (on average 8.705882352941176) internal successors, (148), 17 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:24,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:24,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 56 [2025-02-08 14:12:24,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:25,009 INFO L124 PetriNetUnfolderBase]: 1860/2946 cut-off events. [2025-02-08 14:12:25,009 INFO L125 PetriNetUnfolderBase]: For 630/630 co-relation queries the response was YES. [2025-02-08 14:12:25,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6559 conditions, 2946 events. 1860/2946 cut-off events. For 630/630 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 16350 event pairs, 1683 based on Foata normal form. 0/2097 useless extension candidates. Maximal degree in co-relation 6433. Up to 2167 conditions per place. [2025-02-08 14:12:25,019 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 63 selfloop transitions, 42 changer transitions 4/113 dead transitions. [2025-02-08 14:12:25,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 113 transitions, 759 flow [2025-02-08 14:12:25,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 14:12:25,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 14:12:25,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 181 transitions. [2025-02-08 14:12:25,021 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.24862637362637363 [2025-02-08 14:12:25,021 INFO L175 Difference]: Start difference. First operand has 74 places, 64 transitions, 340 flow. Second operand 13 states and 181 transitions. [2025-02-08 14:12:25,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 113 transitions, 759 flow [2025-02-08 14:12:25,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 113 transitions, 705 flow, removed 0 selfloop flow, removed 9 redundant places. [2025-02-08 14:12:25,024 INFO L231 Difference]: Finished difference. Result has 80 places, 79 transitions, 512 flow [2025-02-08 14:12:25,024 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=512, PETRI_PLACES=80, PETRI_TRANSITIONS=79} [2025-02-08 14:12:25,024 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 21 predicate places. [2025-02-08 14:12:25,024 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 79 transitions, 512 flow [2025-02-08 14:12:25,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.705882352941176) internal successors, (148), 17 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:25,026 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:25,026 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-02-08 14:12:25,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-08 14:12:25,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:25,227 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:25,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:25,227 INFO L85 PathProgramCache]: Analyzing trace with hash 975611895, now seen corresponding path program 2 times [2025-02-08 14:12:25,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:25,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295582676] [2025-02-08 14:12:25,227 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:12:25,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:25,233 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:12:25,235 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:12:25,235 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:12:25,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:25,254 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:12:25,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:25,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295582676] [2025-02-08 14:12:25,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295582676] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:25,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553822158] [2025-02-08 14:12:25,254 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:12:25,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:25,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:25,256 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:25,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 14:12:25,313 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-02-08 14:12:25,318 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-02-08 14:12:25,319 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:12:25,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:25,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:12:25,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:25,339 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:12:25,339 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:25,353 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:12:25,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553822158] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:25,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:25,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-02-08 14:12:25,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844052241] [2025-02-08 14:12:25,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:25,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:12:25,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:25,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:12:25,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:12:25,360 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 56 [2025-02-08 14:12:25,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 79 transitions, 512 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:25,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:25,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 56 [2025-02-08 14:12:25,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:25,572 INFO L124 PetriNetUnfolderBase]: 1695/2772 cut-off events. [2025-02-08 14:12:25,572 INFO L125 PetriNetUnfolderBase]: For 819/819 co-relation queries the response was YES. [2025-02-08 14:12:25,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6288 conditions, 2772 events. 1695/2772 cut-off events. For 819/819 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 16164 event pairs, 1683 based on Foata normal form. 1/2031 useless extension candidates. Maximal degree in co-relation 6144. Up to 2642 conditions per place. [2025-02-08 14:12:25,582 INFO L140 encePairwiseOnDemand]: 51/56 looper letters, 57 selfloop transitions, 16 changer transitions 0/78 dead transitions. [2025-02-08 14:12:25,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 78 transitions, 648 flow [2025-02-08 14:12:25,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:12:25,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:12:25,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2025-02-08 14:12:25,584 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.29464285714285715 [2025-02-08 14:12:25,584 INFO L175 Difference]: Start difference. First operand has 80 places, 79 transitions, 512 flow. Second operand 4 states and 66 transitions. [2025-02-08 14:12:25,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 78 transitions, 648 flow [2025-02-08 14:12:25,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 78 transitions, 608 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:12:25,586 INFO L231 Difference]: Finished difference. Result has 79 places, 78 transitions, 494 flow [2025-02-08 14:12:25,588 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=494, PETRI_PLACES=79, PETRI_TRANSITIONS=78} [2025-02-08 14:12:25,589 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 20 predicate places. [2025-02-08 14:12:25,589 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 78 transitions, 494 flow [2025-02-08 14:12:25,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:25,589 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:25,589 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1] [2025-02-08 14:12:25,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-08 14:12:25,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:25,790 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:25,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:25,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1767364586, now seen corresponding path program 1 times [2025-02-08 14:12:25,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:25,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161564261] [2025-02-08 14:12:25,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:25,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:25,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:12:25,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:12:25,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:25,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:25,846 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-08 14:12:25,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:25,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161564261] [2025-02-08 14:12:25,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161564261] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:12:25,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:12:25,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:12:25,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128705111] [2025-02-08 14:12:25,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:12:25,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:12:25,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:25,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:12:25,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:12:25,853 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2025-02-08 14:12:25,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 78 transitions, 494 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:25,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:25,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2025-02-08 14:12:25,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:26,088 INFO L124 PetriNetUnfolderBase]: 1694/2756 cut-off events. [2025-02-08 14:12:26,088 INFO L125 PetriNetUnfolderBase]: For 701/701 co-relation queries the response was YES. [2025-02-08 14:12:26,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6213 conditions, 2756 events. 1694/2756 cut-off events. For 701/701 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 16048 event pairs, 1683 based on Foata normal form. 1/2015 useless extension candidates. Maximal degree in co-relation 6105. Up to 2631 conditions per place. [2025-02-08 14:12:26,097 INFO L140 encePairwiseOnDemand]: 51/56 looper letters, 61 selfloop transitions, 8 changer transitions 1/76 dead transitions. [2025-02-08 14:12:26,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 76 transitions, 616 flow [2025-02-08 14:12:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:12:26,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:12:26,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2025-02-08 14:12:26,098 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38392857142857145 [2025-02-08 14:12:26,098 INFO L175 Difference]: Start difference. First operand has 79 places, 78 transitions, 494 flow. Second operand 4 states and 86 transitions. [2025-02-08 14:12:26,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 76 transitions, 616 flow [2025-02-08 14:12:26,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 76 transitions, 584 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:12:26,100 INFO L231 Difference]: Finished difference. Result has 78 places, 75 transitions, 455 flow [2025-02-08 14:12:26,101 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=455, PETRI_PLACES=78, PETRI_TRANSITIONS=75} [2025-02-08 14:12:26,102 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 19 predicate places. [2025-02-08 14:12:26,102 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 75 transitions, 455 flow [2025-02-08 14:12:26,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:26,103 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:26,103 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:26,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:12:26,103 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:26,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:26,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1818254010, now seen corresponding path program 1 times [2025-02-08 14:12:26,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:26,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572469889] [2025-02-08 14:12:26,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:26,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:26,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:12:26,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:12:26,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:26,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:26,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:26,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:26,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572469889] [2025-02-08 14:12:26,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572469889] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:26,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060378188] [2025-02-08 14:12:26,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:26,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:26,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:26,319 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:26,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 14:12:26,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:12:26,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:12:26,394 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:26,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:26,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-02-08 14:12:26,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:26,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:12:26,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:26,508 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:26,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2025-02-08 14:12:26,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2025-02-08 14:12:26,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:26,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060378188] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:26,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:26,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 22 [2025-02-08 14:12:26,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571597586] [2025-02-08 14:12:26,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:26,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 14:12:26,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:26,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 14:12:26,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2025-02-08 14:12:26,803 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 56 [2025-02-08 14:12:26,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 75 transitions, 455 flow. Second operand has 24 states, 24 states have (on average 8.875) internal successors, (213), 24 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:26,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:26,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 56 [2025-02-08 14:12:26,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:27,493 INFO L124 PetriNetUnfolderBase]: 2326/3655 cut-off events. [2025-02-08 14:12:27,493 INFO L125 PetriNetUnfolderBase]: For 1367/1448 co-relation queries the response was YES. [2025-02-08 14:12:27,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8420 conditions, 3655 events. 2326/3655 cut-off events. For 1367/1448 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 21039 event pairs, 1136 based on Foata normal form. 0/2677 useless extension candidates. Maximal degree in co-relation 8314. Up to 1247 conditions per place. [2025-02-08 14:12:27,505 INFO L140 encePairwiseOnDemand]: 42/56 looper letters, 92 selfloop transitions, 45 changer transitions 12/153 dead transitions. [2025-02-08 14:12:27,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 153 transitions, 977 flow [2025-02-08 14:12:27,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-08 14:12:27,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-08 14:12:27,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 251 transitions. [2025-02-08 14:12:27,507 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.26365546218487396 [2025-02-08 14:12:27,507 INFO L175 Difference]: Start difference. First operand has 78 places, 75 transitions, 455 flow. Second operand 17 states and 251 transitions. [2025-02-08 14:12:27,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 153 transitions, 977 flow [2025-02-08 14:12:27,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 153 transitions, 961 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:12:27,511 INFO L231 Difference]: Finished difference. Result has 92 places, 82 transitions, 561 flow [2025-02-08 14:12:27,511 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=561, PETRI_PLACES=92, PETRI_TRANSITIONS=82} [2025-02-08 14:12:27,511 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 33 predicate places. [2025-02-08 14:12:27,511 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 82 transitions, 561 flow [2025-02-08 14:12:27,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 8.875) internal successors, (213), 24 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:27,512 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:27,512 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:27,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-08 14:12:27,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:27,713 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:27,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:27,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1818254011, now seen corresponding path program 1 times [2025-02-08 14:12:27,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:27,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685817587] [2025-02-08 14:12:27,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:27,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:27,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:12:27,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:12:27,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:27,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:27,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:27,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:27,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685817587] [2025-02-08 14:12:27,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685817587] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:27,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793719597] [2025-02-08 14:12:27,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:27,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:27,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:27,917 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:27,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 14:12:27,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:12:27,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:12:27,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:27,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:27,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-02-08 14:12:28,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:28,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:12:28,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:28,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:28,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2025-02-08 14:12:28,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16 [2025-02-08 14:12:28,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:28,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793719597] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:28,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:28,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 21 [2025-02-08 14:12:28,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034358698] [2025-02-08 14:12:28,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:28,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 14:12:28,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:28,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 14:12:28,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2025-02-08 14:12:28,390 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 56 [2025-02-08 14:12:28,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 82 transitions, 561 flow. Second operand has 23 states, 23 states have (on average 9.826086956521738) internal successors, (226), 23 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:28,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:28,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 56 [2025-02-08 14:12:28,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:28,996 INFO L124 PetriNetUnfolderBase]: 1862/3022 cut-off events. [2025-02-08 14:12:28,996 INFO L125 PetriNetUnfolderBase]: For 1434/1506 co-relation queries the response was YES. [2025-02-08 14:12:29,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7670 conditions, 3022 events. 1862/3022 cut-off events. For 1434/1506 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 17820 event pairs, 932 based on Foata normal form. 0/2394 useless extension candidates. Maximal degree in co-relation 7549. Up to 1022 conditions per place. [2025-02-08 14:12:29,008 INFO L140 encePairwiseOnDemand]: 43/56 looper letters, 88 selfloop transitions, 45 changer transitions 1/139 dead transitions. [2025-02-08 14:12:29,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 139 transitions, 1005 flow [2025-02-08 14:12:29,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 14:12:29,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-08 14:12:29,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 245 transitions. [2025-02-08 14:12:29,010 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2734375 [2025-02-08 14:12:29,010 INFO L175 Difference]: Start difference. First operand has 92 places, 82 transitions, 561 flow. Second operand 16 states and 245 transitions. [2025-02-08 14:12:29,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 139 transitions, 1005 flow [2025-02-08 14:12:29,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 139 transitions, 936 flow, removed 0 selfloop flow, removed 10 redundant places. [2025-02-08 14:12:29,017 INFO L231 Difference]: Finished difference. Result has 96 places, 82 transitions, 582 flow [2025-02-08 14:12:29,018 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=582, PETRI_PLACES=96, PETRI_TRANSITIONS=82} [2025-02-08 14:12:29,018 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 37 predicate places. [2025-02-08 14:12:29,019 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 82 transitions, 582 flow [2025-02-08 14:12:29,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.826086956521738) internal successors, (226), 23 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:29,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:29,019 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:29,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-08 14:12:29,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-02-08 14:12:29,220 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:29,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:29,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1818254013, now seen corresponding path program 1 times [2025-02-08 14:12:29,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:29,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191248669] [2025-02-08 14:12:29,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:29,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:29,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:12:29,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:12:29,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:29,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:29,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:29,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:29,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191248669] [2025-02-08 14:12:29,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191248669] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:29,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266821898] [2025-02-08 14:12:29,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:29,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:29,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:29,464 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:29,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 14:12:29,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:12:29,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:12:29,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:29,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:29,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-02-08 14:12:29,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:29,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 14:12:29,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-02-08 14:12:29,642 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:12:29,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-08 14:12:29,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2025-02-08 14:12:29,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:29,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:30,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:12:30,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2025-02-08 14:12:30,015 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:12:30,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 39 [2025-02-08 14:12:30,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2025-02-08 14:12:30,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:30,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266821898] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:30,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:30,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 21 [2025-02-08 14:12:30,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834831142] [2025-02-08 14:12:30,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:30,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 14:12:30,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:30,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 14:12:30,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=440, Unknown=2, NotChecked=0, Total=506 [2025-02-08 14:12:30,275 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 56 [2025-02-08 14:12:30,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 82 transitions, 582 flow. Second operand has 23 states, 23 states have (on average 5.217391304347826) internal successors, (120), 23 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:30,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:30,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 56 [2025-02-08 14:12:30,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:32,326 INFO L124 PetriNetUnfolderBase]: 5081/7815 cut-off events. [2025-02-08 14:12:32,326 INFO L125 PetriNetUnfolderBase]: For 3552/3552 co-relation queries the response was YES. [2025-02-08 14:12:32,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20426 conditions, 7815 events. 5081/7815 cut-off events. For 3552/3552 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 42765 event pairs, 2914 based on Foata normal form. 0/5962 useless extension candidates. Maximal degree in co-relation 20260. Up to 3444 conditions per place. [2025-02-08 14:12:32,346 INFO L140 encePairwiseOnDemand]: 45/56 looper letters, 163 selfloop transitions, 56 changer transitions 10/229 dead transitions. [2025-02-08 14:12:32,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 229 transitions, 1582 flow [2025-02-08 14:12:32,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-02-08 14:12:32,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2025-02-08 14:12:32,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 286 transitions. [2025-02-08 14:12:32,366 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.19642857142857142 [2025-02-08 14:12:32,366 INFO L175 Difference]: Start difference. First operand has 96 places, 82 transitions, 582 flow. Second operand 26 states and 286 transitions. [2025-02-08 14:12:32,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 229 transitions, 1582 flow [2025-02-08 14:12:32,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 229 transitions, 1514 flow, removed 0 selfloop flow, removed 10 redundant places. [2025-02-08 14:12:32,379 INFO L231 Difference]: Finished difference. Result has 115 places, 100 transitions, 822 flow [2025-02-08 14:12:32,379 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=822, PETRI_PLACES=115, PETRI_TRANSITIONS=100} [2025-02-08 14:12:32,381 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 56 predicate places. [2025-02-08 14:12:32,381 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 100 transitions, 822 flow [2025-02-08 14:12:32,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.217391304347826) internal successors, (120), 23 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:32,381 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:32,381 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:32,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-08 14:12:32,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-02-08 14:12:32,585 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:32,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:32,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1818254014, now seen corresponding path program 1 times [2025-02-08 14:12:32,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:32,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726625567] [2025-02-08 14:12:32,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:32,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:32,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:12:32,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:12:32,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:32,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:32,814 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:32,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:32,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726625567] [2025-02-08 14:12:32,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726625567] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:32,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692001592] [2025-02-08 14:12:32,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:32,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:32,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:32,817 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:32,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 14:12:32,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:12:32,894 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:12:32,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:32,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:32,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-02-08 14:12:32,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:32,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 14:12:32,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-02-08 14:12:32,988 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:12:32,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-08 14:12:33,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-02-08 14:12:33,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:33,148 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:33,348 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:12:33,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2025-02-08 14:12:33,355 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:12:33,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 33 [2025-02-08 14:12:33,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2025-02-08 14:12:33,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:33,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692001592] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:33,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:33,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 21 [2025-02-08 14:12:33,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496938454] [2025-02-08 14:12:33,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:33,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 14:12:33,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:33,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 14:12:33,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=440, Unknown=3, NotChecked=0, Total=506 [2025-02-08 14:12:33,607 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 56 [2025-02-08 14:12:33,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 100 transitions, 822 flow. Second operand has 23 states, 23 states have (on average 5.217391304347826) internal successors, (120), 23 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:33,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:33,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 56 [2025-02-08 14:12:33,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:35,309 INFO L124 PetriNetUnfolderBase]: 4671/7203 cut-off events. [2025-02-08 14:12:35,309 INFO L125 PetriNetUnfolderBase]: For 6519/6519 co-relation queries the response was YES. [2025-02-08 14:12:35,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19908 conditions, 7203 events. 4671/7203 cut-off events. For 6519/6519 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 38930 event pairs, 2914 based on Foata normal form. 168/5943 useless extension candidates. Maximal degree in co-relation 19822. Up to 3444 conditions per place. [2025-02-08 14:12:35,330 INFO L140 encePairwiseOnDemand]: 45/56 looper letters, 136 selfloop transitions, 51 changer transitions 29/216 dead transitions. [2025-02-08 14:12:35,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 216 transitions, 1595 flow [2025-02-08 14:12:35,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-08 14:12:35,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-02-08 14:12:35,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 270 transitions. [2025-02-08 14:12:35,331 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.19285714285714287 [2025-02-08 14:12:35,331 INFO L175 Difference]: Start difference. First operand has 115 places, 100 transitions, 822 flow. Second operand 25 states and 270 transitions. [2025-02-08 14:12:35,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 216 transitions, 1595 flow [2025-02-08 14:12:35,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 216 transitions, 1525 flow, removed 7 selfloop flow, removed 9 redundant places. [2025-02-08 14:12:35,345 INFO L231 Difference]: Finished difference. Result has 129 places, 92 transitions, 781 flow [2025-02-08 14:12:35,346 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=781, PETRI_PLACES=129, PETRI_TRANSITIONS=92} [2025-02-08 14:12:35,346 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 70 predicate places. [2025-02-08 14:12:35,346 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 92 transitions, 781 flow [2025-02-08 14:12:35,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.217391304347826) internal successors, (120), 23 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:35,346 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:35,346 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:35,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-08 14:12:35,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:35,549 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:35,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:35,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1449219414, now seen corresponding path program 1 times [2025-02-08 14:12:35,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:35,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881124032] [2025-02-08 14:12:35,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:35,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:35,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 14:12:35,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 14:12:35,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:35,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-08 14:12:35,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:35,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881124032] [2025-02-08 14:12:35,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881124032] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:35,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900939556] [2025-02-08 14:12:35,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:35,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:35,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:35,636 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:35,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 14:12:35,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 14:12:35,711 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 14:12:35,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:35,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:35,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 14:12:35,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:35,777 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-08 14:12:35,777 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:35,836 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-08 14:12:35,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900939556] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:35,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:35,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2025-02-08 14:12:35,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043529508] [2025-02-08 14:12:35,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:35,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 14:12:35,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:35,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 14:12:35,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2025-02-08 14:12:35,928 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 56 [2025-02-08 14:12:35,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 92 transitions, 781 flow. Second operand has 19 states, 19 states have (on average 9.210526315789474) internal successors, (175), 19 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:35,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:35,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 56 [2025-02-08 14:12:35,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:36,519 INFO L124 PetriNetUnfolderBase]: 2810/4551 cut-off events. [2025-02-08 14:12:36,519 INFO L125 PetriNetUnfolderBase]: For 5178/5304 co-relation queries the response was YES. [2025-02-08 14:12:36,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12623 conditions, 4551 events. 2810/4551 cut-off events. For 5178/5304 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 29808 event pairs, 2802 based on Foata normal form. 1/3950 useless extension candidates. Maximal degree in co-relation 12595. Up to 3389 conditions per place. [2025-02-08 14:12:36,540 INFO L140 encePairwiseOnDemand]: 49/56 looper letters, 56 selfloop transitions, 32 changer transitions 4/97 dead transitions. [2025-02-08 14:12:36,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 97 transitions, 911 flow [2025-02-08 14:12:36,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:12:36,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:12:36,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 145 transitions. [2025-02-08 14:12:36,541 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.25892857142857145 [2025-02-08 14:12:36,541 INFO L175 Difference]: Start difference. First operand has 129 places, 92 transitions, 781 flow. Second operand 10 states and 145 transitions. [2025-02-08 14:12:36,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 97 transitions, 911 flow [2025-02-08 14:12:36,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 97 transitions, 812 flow, removed 7 selfloop flow, removed 20 redundant places. [2025-02-08 14:12:36,569 INFO L231 Difference]: Finished difference. Result has 106 places, 81 transitions, 631 flow [2025-02-08 14:12:36,569 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=631, PETRI_PLACES=106, PETRI_TRANSITIONS=81} [2025-02-08 14:12:36,570 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 47 predicate places. [2025-02-08 14:12:36,570 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 81 transitions, 631 flow [2025-02-08 14:12:36,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.210526315789474) internal successors, (175), 19 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:36,570 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:36,570 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:36,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-08 14:12:36,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:36,774 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:36,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:36,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1500108839, now seen corresponding path program 2 times [2025-02-08 14:12:36,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:36,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075056584] [2025-02-08 14:12:36,774 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:12:36,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:36,781 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 2 equivalence classes. [2025-02-08 14:12:36,787 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 14:12:36,787 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:12:36,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:36,881 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:36,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:36,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075056584] [2025-02-08 14:12:36,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075056584] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:36,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16541302] [2025-02-08 14:12:36,882 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:12:36,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:36,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:36,884 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:36,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-08 14:12:36,950 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 2 equivalence classes. [2025-02-08 14:12:36,966 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 14:12:36,966 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:12:36,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:36,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-08 14:12:36,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:37,030 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:37,030 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:37,108 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:37,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16541302] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:37,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:37,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2025-02-08 14:12:37,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177194382] [2025-02-08 14:12:37,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:37,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-02-08 14:12:37,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:37,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-02-08 14:12:37,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2025-02-08 14:12:37,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 56 [2025-02-08 14:12:37,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 81 transitions, 631 flow. Second operand has 20 states, 20 states have (on average 9.55) internal successors, (191), 20 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:37,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:37,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 56 [2025-02-08 14:12:37,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:37,665 INFO L124 PetriNetUnfolderBase]: 2212/3535 cut-off events. [2025-02-08 14:12:37,665 INFO L125 PetriNetUnfolderBase]: For 2731/2857 co-relation queries the response was YES. [2025-02-08 14:12:37,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9114 conditions, 3535 events. 2212/3535 cut-off events. For 2731/2857 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 22535 event pairs, 2204 based on Foata normal form. 2/2863 useless extension candidates. Maximal degree in co-relation 9030. Up to 3376 conditions per place. [2025-02-08 14:12:37,700 INFO L140 encePairwiseOnDemand]: 49/56 looper letters, 28 selfloop transitions, 39 changer transitions 0/72 dead transitions. [2025-02-08 14:12:37,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 72 transitions, 694 flow [2025-02-08 14:12:37,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 14:12:37,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 14:12:37,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 137 transitions. [2025-02-08 14:12:37,701 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.20386904761904762 [2025-02-08 14:12:37,701 INFO L175 Difference]: Start difference. First operand has 106 places, 81 transitions, 631 flow. Second operand 12 states and 137 transitions. [2025-02-08 14:12:37,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 72 transitions, 694 flow [2025-02-08 14:12:37,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 72 transitions, 626 flow, removed 4 selfloop flow, removed 8 redundant places. [2025-02-08 14:12:37,712 INFO L231 Difference]: Finished difference. Result has 92 places, 72 transitions, 570 flow [2025-02-08 14:12:37,712 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=570, PETRI_PLACES=92, PETRI_TRANSITIONS=72} [2025-02-08 14:12:37,712 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 33 predicate places. [2025-02-08 14:12:37,712 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 72 transitions, 570 flow [2025-02-08 14:12:37,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.55) internal successors, (191), 20 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:37,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:37,713 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:37,719 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-08 14:12:37,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-08 14:12:37,913 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:37,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:37,914 INFO L85 PathProgramCache]: Analyzing trace with hash -445684231, now seen corresponding path program 1 times [2025-02-08 14:12:37,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:37,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258904009] [2025-02-08 14:12:37,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:37,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:37,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 14:12:37,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 14:12:37,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:37,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:12:38,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:38,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258904009] [2025-02-08 14:12:38,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258904009] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:38,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311988038] [2025-02-08 14:12:38,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:38,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:38,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:38,123 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:38,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-08 14:12:38,185 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 14:12:38,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 14:12:38,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:38,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:38,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-08 14:12:38,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:38,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:12:38,238 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2025-02-08 14:12:38,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 11 [2025-02-08 14:12:38,266 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:12:38,266 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:38,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 19 [2025-02-08 14:12:38,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 42 [2025-02-08 14:12:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:12:38,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311988038] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:38,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:38,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2025-02-08 14:12:38,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730521135] [2025-02-08 14:12:38,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:38,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 14:12:38,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:38,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 14:12:38,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2025-02-08 14:12:38,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 56 [2025-02-08 14:12:38,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 72 transitions, 570 flow. Second operand has 19 states, 19 states have (on average 9.842105263157896) internal successors, (187), 19 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:38,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:38,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 56 [2025-02-08 14:12:38,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:38,783 INFO L124 PetriNetUnfolderBase]: 1922/3093 cut-off events. [2025-02-08 14:12:38,783 INFO L125 PetriNetUnfolderBase]: For 2257/2257 co-relation queries the response was YES. [2025-02-08 14:12:38,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7685 conditions, 3093 events. 1922/3093 cut-off events. For 2257/2257 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 18204 event pairs, 672 based on Foata normal form. 0/2641 useless extension candidates. Maximal degree in co-relation 7600. Up to 2160 conditions per place. [2025-02-08 14:12:38,795 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 41 selfloop transitions, 41 changer transitions 0/87 dead transitions. [2025-02-08 14:12:38,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 87 transitions, 799 flow [2025-02-08 14:12:38,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 14:12:38,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 14:12:38,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 115 transitions. [2025-02-08 14:12:38,796 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.25669642857142855 [2025-02-08 14:12:38,796 INFO L175 Difference]: Start difference. First operand has 92 places, 72 transitions, 570 flow. Second operand 8 states and 115 transitions. [2025-02-08 14:12:38,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 87 transitions, 799 flow [2025-02-08 14:12:38,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 87 transitions, 686 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-02-08 14:12:38,800 INFO L231 Difference]: Finished difference. Result has 90 places, 71 transitions, 545 flow [2025-02-08 14:12:38,800 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=545, PETRI_PLACES=90, PETRI_TRANSITIONS=71} [2025-02-08 14:12:38,800 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 31 predicate places. [2025-02-08 14:12:38,800 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 71 transitions, 545 flow [2025-02-08 14:12:38,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.842105263157896) internal successors, (187), 19 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:38,801 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:38,801 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:38,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-02-08 14:12:39,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-08 14:12:39,001 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:39,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:39,002 INFO L85 PathProgramCache]: Analyzing trace with hash -445684229, now seen corresponding path program 2 times [2025-02-08 14:12:39,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:39,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034074267] [2025-02-08 14:12:39,002 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:12:39,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:39,009 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-02-08 14:12:39,028 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 14:12:39,029 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:12:39,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:39,357 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:12:39,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:39,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034074267] [2025-02-08 14:12:39,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034074267] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:39,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004871920] [2025-02-08 14:12:39,358 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:12:39,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:39,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:39,360 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:39,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-08 14:12:39,427 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-02-08 14:12:39,445 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 14:12:39,445 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:12:39,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:39,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 46 conjuncts are in the unsatisfiable core [2025-02-08 14:12:39,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:39,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 14:12:39,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:12:39,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2025-02-08 14:12:39,550 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:12:39,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-08 14:12:39,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-02-08 14:12:39,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-02-08 14:12:39,690 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:39,691 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:39,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:12:39,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 38 [2025-02-08 14:12:39,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:12:39,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 35 [2025-02-08 14:12:39,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2025-02-08 14:12:39,891 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:12:39,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004871920] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:39,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:39,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 7] total 26 [2025-02-08 14:12:39,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113733257] [2025-02-08 14:12:39,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:39,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-02-08 14:12:39,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:39,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-02-08 14:12:39,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=644, Unknown=3, NotChecked=0, Total=756 [2025-02-08 14:12:40,006 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 56 [2025-02-08 14:12:40,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 71 transitions, 545 flow. Second operand has 28 states, 28 states have (on average 5.214285714285714) internal successors, (146), 28 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:40,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:40,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 56 [2025-02-08 14:12:40,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:40,796 INFO L124 PetriNetUnfolderBase]: 2742/4199 cut-off events. [2025-02-08 14:12:40,796 INFO L125 PetriNetUnfolderBase]: For 1111/1111 co-relation queries the response was YES. [2025-02-08 14:12:40,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10704 conditions, 4199 events. 2742/4199 cut-off events. For 1111/1111 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 22667 event pairs, 664 based on Foata normal form. 0/3239 useless extension candidates. Maximal degree in co-relation 10619. Up to 3050 conditions per place. [2025-02-08 14:12:40,809 INFO L140 encePairwiseOnDemand]: 45/56 looper letters, 66 selfloop transitions, 28 changer transitions 0/94 dead transitions. [2025-02-08 14:12:40,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 94 transitions, 806 flow [2025-02-08 14:12:40,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-08 14:12:40,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-08 14:12:40,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 124 transitions. [2025-02-08 14:12:40,810 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.13025210084033614 [2025-02-08 14:12:40,810 INFO L175 Difference]: Start difference. First operand has 90 places, 71 transitions, 545 flow. Second operand 17 states and 124 transitions. [2025-02-08 14:12:40,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 94 transitions, 806 flow [2025-02-08 14:12:40,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 94 transitions, 724 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-02-08 14:12:40,814 INFO L231 Difference]: Finished difference. Result has 98 places, 70 transitions, 517 flow [2025-02-08 14:12:40,814 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=517, PETRI_PLACES=98, PETRI_TRANSITIONS=70} [2025-02-08 14:12:40,814 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 39 predicate places. [2025-02-08 14:12:40,814 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 70 transitions, 517 flow [2025-02-08 14:12:40,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.214285714285714) internal successors, (146), 28 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:40,815 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:40,815 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:40,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-02-08 14:12:41,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:41,015 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:41,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:41,016 INFO L85 PathProgramCache]: Analyzing trace with hash -445684228, now seen corresponding path program 1 times [2025-02-08 14:12:41,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:41,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409690982] [2025-02-08 14:12:41,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:41,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:41,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 14:12:41,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 14:12:41,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:41,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:41,247 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:12:41,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:41,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409690982] [2025-02-08 14:12:41,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409690982] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:41,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548043968] [2025-02-08 14:12:41,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:41,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:41,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:41,250 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:41,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-08 14:12:41,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 14:12:41,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 14:12:41,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:41,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:41,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-02-08 14:12:41,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:41,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 14:12:41,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:12:41,388 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2025-02-08 14:12:41,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 11 [2025-02-08 14:12:41,405 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:12:41,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-08 14:12:41,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-08 14:12:41,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-02-08 14:12:41,459 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:12:41,459 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:41,492 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_371 (Array Int Int))) (< (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_371) c_~A~0.base) c_~A~0.offset) 2147483648)) is different from false [2025-02-08 14:12:41,606 INFO L349 Elim1Store]: treesize reduction 21, result has 54.3 percent of original size [2025-02-08 14:12:41,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 35 [2025-02-08 14:12:41,613 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:12:41,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 29 [2025-02-08 14:12:41,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2025-02-08 14:12:41,646 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 4 not checked. [2025-02-08 14:12:41,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548043968] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:41,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:41,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 20 [2025-02-08 14:12:41,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404528382] [2025-02-08 14:12:41,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:41,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-02-08 14:12:41,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:41,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-02-08 14:12:41,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=348, Unknown=2, NotChecked=38, Total=462 [2025-02-08 14:12:41,659 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 56 [2025-02-08 14:12:41,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 70 transitions, 517 flow. Second operand has 22 states, 22 states have (on average 7.590909090909091) internal successors, (167), 22 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:41,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:41,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 56 [2025-02-08 14:12:41,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:42,113 INFO L124 PetriNetUnfolderBase]: 1632/2591 cut-off events. [2025-02-08 14:12:42,113 INFO L125 PetriNetUnfolderBase]: For 847/847 co-relation queries the response was YES. [2025-02-08 14:12:42,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6833 conditions, 2591 events. 1632/2591 cut-off events. For 847/847 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 15128 event pairs, 464 based on Foata normal form. 0/2219 useless extension candidates. Maximal degree in co-relation 6751. Up to 1728 conditions per place. [2025-02-08 14:12:42,123 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 44 selfloop transitions, 41 changer transitions 0/87 dead transitions. [2025-02-08 14:12:42,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 87 transitions, 748 flow [2025-02-08 14:12:42,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 14:12:42,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 14:12:42,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 114 transitions. [2025-02-08 14:12:42,124 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.16964285714285715 [2025-02-08 14:12:42,124 INFO L175 Difference]: Start difference. First operand has 98 places, 70 transitions, 517 flow. Second operand 12 states and 114 transitions. [2025-02-08 14:12:42,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 87 transitions, 748 flow [2025-02-08 14:12:42,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 87 transitions, 668 flow, removed 2 selfloop flow, removed 15 redundant places. [2025-02-08 14:12:42,128 INFO L231 Difference]: Finished difference. Result has 93 places, 69 transitions, 517 flow [2025-02-08 14:12:42,128 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=517, PETRI_PLACES=93, PETRI_TRANSITIONS=69} [2025-02-08 14:12:42,128 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 34 predicate places. [2025-02-08 14:12:42,128 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 69 transitions, 517 flow [2025-02-08 14:12:42,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.590909090909091) internal successors, (167), 22 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:42,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:42,129 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:42,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-02-08 14:12:42,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:42,329 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:42,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:42,330 INFO L85 PathProgramCache]: Analyzing trace with hash -445684232, now seen corresponding path program 1 times [2025-02-08 14:12:42,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:42,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003230086] [2025-02-08 14:12:42,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:42,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:42,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 14:12:42,339 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 14:12:42,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:42,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:42,472 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:12:42,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:42,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003230086] [2025-02-08 14:12:42,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003230086] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:42,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312797561] [2025-02-08 14:12:42,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:12:42,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:42,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:42,475 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:42,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-08 14:12:42,539 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 14:12:42,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 14:12:42,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:12:42,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:42,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-08 14:12:42,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:42,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:12:42,599 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2025-02-08 14:12:42,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 13 [2025-02-08 14:12:42,636 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:12:42,636 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:42,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2025-02-08 14:12:42,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 110 [2025-02-08 14:12:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:12:42,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312797561] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:42,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:42,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2025-02-08 14:12:42,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378515552] [2025-02-08 14:12:42,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:42,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 14:12:42,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:42,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 14:12:42,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2025-02-08 14:12:42,805 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 56 [2025-02-08 14:12:42,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 69 transitions, 517 flow. Second operand has 19 states, 19 states have (on average 9.842105263157896) internal successors, (187), 19 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:42,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:42,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 56 [2025-02-08 14:12:42,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:43,083 INFO L124 PetriNetUnfolderBase]: 1052/1869 cut-off events. [2025-02-08 14:12:43,083 INFO L125 PetriNetUnfolderBase]: For 689/689 co-relation queries the response was YES. [2025-02-08 14:12:43,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4837 conditions, 1869 events. 1052/1869 cut-off events. For 689/689 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 11380 event pairs, 464 based on Foata normal form. 0/1711 useless extension candidates. Maximal degree in co-relation 4759. Up to 864 conditions per place. [2025-02-08 14:12:43,089 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 32 selfloop transitions, 41 changer transitions 6/84 dead transitions. [2025-02-08 14:12:43,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 84 transitions, 732 flow [2025-02-08 14:12:43,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 14:12:43,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 14:12:43,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 112 transitions. [2025-02-08 14:12:43,090 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.25 [2025-02-08 14:12:43,090 INFO L175 Difference]: Start difference. First operand has 93 places, 69 transitions, 517 flow. Second operand 8 states and 112 transitions. [2025-02-08 14:12:43,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 84 transitions, 732 flow [2025-02-08 14:12:43,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 84 transitions, 664 flow, removed 1 selfloop flow, removed 9 redundant places. [2025-02-08 14:12:43,093 INFO L231 Difference]: Finished difference. Result has 90 places, 65 transitions, 516 flow [2025-02-08 14:12:43,093 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=516, PETRI_PLACES=90, PETRI_TRANSITIONS=65} [2025-02-08 14:12:43,094 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 31 predicate places. [2025-02-08 14:12:43,094 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 65 transitions, 516 flow [2025-02-08 14:12:43,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.842105263157896) internal successors, (187), 19 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:43,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:43,094 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 2, 2, 2, 1, 1, 1] [2025-02-08 14:12:43,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-02-08 14:12:43,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:43,295 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:43,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:43,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1715744662, now seen corresponding path program 2 times [2025-02-08 14:12:43,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:43,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767807742] [2025-02-08 14:12:43,295 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:12:43,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:43,301 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-02-08 14:12:43,302 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 23 statements. [2025-02-08 14:12:43,303 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:12:43,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:43,322 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-08 14:12:43,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:43,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767807742] [2025-02-08 14:12:43,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767807742] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:43,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114750807] [2025-02-08 14:12:43,323 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:12:43,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:43,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:43,325 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:43,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-08 14:12:43,394 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-02-08 14:12:43,400 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 23 statements. [2025-02-08 14:12:43,401 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:12:43,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:43,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:12:43,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:43,417 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-08 14:12:43,417 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:43,435 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-08 14:12:43,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114750807] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:43,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:43,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2025-02-08 14:12:43,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202937522] [2025-02-08 14:12:43,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:43,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:12:43,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:43,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:12:43,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:12:43,447 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 56 [2025-02-08 14:12:43,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 65 transitions, 516 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:43,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:43,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 56 [2025-02-08 14:12:43,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:43,556 INFO L124 PetriNetUnfolderBase]: 764/1321 cut-off events. [2025-02-08 14:12:43,556 INFO L125 PetriNetUnfolderBase]: For 712/712 co-relation queries the response was YES. [2025-02-08 14:12:43,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3521 conditions, 1321 events. 764/1321 cut-off events. For 712/712 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 6930 event pairs, 756 based on Foata normal form. 2/1223 useless extension candidates. Maximal degree in co-relation 3446. Up to 1212 conditions per place. [2025-02-08 14:12:43,560 INFO L140 encePairwiseOnDemand]: 49/56 looper letters, 23 selfloop transitions, 36 changer transitions 0/64 dead transitions. [2025-02-08 14:12:43,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 64 transitions, 626 flow [2025-02-08 14:12:43,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:12:43,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:12:43,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 67 transitions. [2025-02-08 14:12:43,561 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2392857142857143 [2025-02-08 14:12:43,561 INFO L175 Difference]: Start difference. First operand has 90 places, 65 transitions, 516 flow. Second operand 5 states and 67 transitions. [2025-02-08 14:12:43,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 64 transitions, 626 flow [2025-02-08 14:12:43,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 64 transitions, 525 flow, removed 3 selfloop flow, removed 10 redundant places. [2025-02-08 14:12:43,563 INFO L231 Difference]: Finished difference. Result has 80 places, 64 transitions, 479 flow [2025-02-08 14:12:43,563 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=479, PETRI_PLACES=80, PETRI_TRANSITIONS=64} [2025-02-08 14:12:43,564 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 21 predicate places. [2025-02-08 14:12:43,564 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 64 transitions, 479 flow [2025-02-08 14:12:43,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:43,564 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:43,564 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:43,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-02-08 14:12:43,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:43,768 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:43,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:43,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1152450556, now seen corresponding path program 3 times [2025-02-08 14:12:43,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:43,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794357359] [2025-02-08 14:12:43,768 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:12:43,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:43,774 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 23 statements into 4 equivalence classes. [2025-02-08 14:12:43,788 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 14:12:43,788 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-02-08 14:12:43,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:44,150 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:44,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:44,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794357359] [2025-02-08 14:12:44,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794357359] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:44,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413161615] [2025-02-08 14:12:44,150 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:12:44,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:44,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:44,152 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:44,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-02-08 14:12:44,229 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 23 statements into 4 equivalence classes. [2025-02-08 14:12:44,252 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 14:12:44,252 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-02-08 14:12:44,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:44,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-02-08 14:12:44,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:44,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:12:44,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2025-02-08 14:12:44,553 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:44,553 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:44,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2025-02-08 14:12:44,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 50 [2025-02-08 14:12:44,934 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:44,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413161615] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:44,935 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:44,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 36 [2025-02-08 14:12:44,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203645683] [2025-02-08 14:12:44,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:44,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2025-02-08 14:12:44,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:44,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2025-02-08 14:12:44,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1204, Unknown=0, NotChecked=0, Total=1406 [2025-02-08 14:12:45,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 56 [2025-02-08 14:12:45,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 64 transitions, 479 flow. Second operand has 38 states, 38 states have (on average 8.5) internal successors, (323), 38 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:45,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:45,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 56 [2025-02-08 14:12:45,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:45,948 INFO L124 PetriNetUnfolderBase]: 1357/2221 cut-off events. [2025-02-08 14:12:45,948 INFO L125 PetriNetUnfolderBase]: For 377/377 co-relation queries the response was YES. [2025-02-08 14:12:45,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5421 conditions, 2221 events. 1357/2221 cut-off events. For 377/377 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 11724 event pairs, 702 based on Foata normal form. 0/2142 useless extension candidates. Maximal degree in co-relation 3329. Up to 503 conditions per place. [2025-02-08 14:12:45,955 INFO L140 encePairwiseOnDemand]: 44/56 looper letters, 99 selfloop transitions, 43 changer transitions 0/146 dead transitions. [2025-02-08 14:12:45,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 146 transitions, 969 flow [2025-02-08 14:12:45,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-02-08 14:12:45,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-02-08 14:12:45,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 295 transitions. [2025-02-08 14:12:45,955 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.22903726708074534 [2025-02-08 14:12:45,955 INFO L175 Difference]: Start difference. First operand has 80 places, 64 transitions, 479 flow. Second operand 23 states and 295 transitions. [2025-02-08 14:12:45,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 146 transitions, 969 flow [2025-02-08 14:12:45,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 146 transitions, 901 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:12:45,958 INFO L231 Difference]: Finished difference. Result has 101 places, 69 transitions, 534 flow [2025-02-08 14:12:45,958 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=534, PETRI_PLACES=101, PETRI_TRANSITIONS=69} [2025-02-08 14:12:45,958 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 42 predicate places. [2025-02-08 14:12:45,958 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 69 transitions, 534 flow [2025-02-08 14:12:45,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 8.5) internal successors, (323), 38 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:45,958 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:45,958 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:45,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-02-08 14:12:46,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:46,159 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:46,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:46,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1152450555, now seen corresponding path program 2 times [2025-02-08 14:12:46,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:46,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851508975] [2025-02-08 14:12:46,159 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:12:46,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:46,167 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-02-08 14:12:46,180 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 14:12:46,181 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:12:46,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:46,521 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:46,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:46,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851508975] [2025-02-08 14:12:46,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851508975] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:46,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520497671] [2025-02-08 14:12:46,522 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:12:46,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:46,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:46,524 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:46,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-02-08 14:12:46,597 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-02-08 14:12:46,616 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 14:12:46,616 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:12:46,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:46,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-02-08 14:12:46,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:46,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:12:46,681 INFO L349 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2025-02-08 14:12:46,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 17 [2025-02-08 14:12:46,915 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-08 14:12:46,916 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:47,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2025-02-08 14:12:47,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 50 [2025-02-08 14:12:47,256 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-08 14:12:47,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520497671] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:47,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:47,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2025-02-08 14:12:47,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795505771] [2025-02-08 14:12:47,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:47,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-02-08 14:12:47,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:47,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-02-08 14:12:47,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=712, Unknown=0, NotChecked=0, Total=812 [2025-02-08 14:12:47,556 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 56 [2025-02-08 14:12:47,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 69 transitions, 534 flow. Second operand has 29 states, 29 states have (on average 8.724137931034482) internal successors, (253), 29 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:47,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:47,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 56 [2025-02-08 14:12:47,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:48,697 INFO L124 PetriNetUnfolderBase]: 1664/2729 cut-off events. [2025-02-08 14:12:48,698 INFO L125 PetriNetUnfolderBase]: For 823/823 co-relation queries the response was YES. [2025-02-08 14:12:48,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7119 conditions, 2729 events. 1664/2729 cut-off events. For 823/823 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 14208 event pairs, 576 based on Foata normal form. 111/2835 useless extension candidates. Maximal degree in co-relation 5724. Up to 545 conditions per place. [2025-02-08 14:12:48,705 INFO L140 encePairwiseOnDemand]: 43/56 looper letters, 91 selfloop transitions, 33 changer transitions 39/167 dead transitions. [2025-02-08 14:12:48,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 167 transitions, 1136 flow [2025-02-08 14:12:48,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2025-02-08 14:12:48,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2025-02-08 14:12:48,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 352 transitions. [2025-02-08 14:12:48,707 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2328042328042328 [2025-02-08 14:12:48,707 INFO L175 Difference]: Start difference. First operand has 101 places, 69 transitions, 534 flow. Second operand 27 states and 352 transitions. [2025-02-08 14:12:48,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 167 transitions, 1136 flow [2025-02-08 14:12:48,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 167 transitions, 1036 flow, removed 0 selfloop flow, removed 14 redundant places. [2025-02-08 14:12:48,710 INFO L231 Difference]: Finished difference. Result has 117 places, 62 transitions, 473 flow [2025-02-08 14:12:48,710 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=473, PETRI_PLACES=117, PETRI_TRANSITIONS=62} [2025-02-08 14:12:48,711 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 58 predicate places. [2025-02-08 14:12:48,711 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 62 transitions, 473 flow [2025-02-08 14:12:48,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.724137931034482) internal successors, (253), 29 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:48,711 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:48,711 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:48,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-02-08 14:12:48,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-02-08 14:12:48,912 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:48,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:48,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1124711528, now seen corresponding path program 4 times [2025-02-08 14:12:48,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:48,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795752190] [2025-02-08 14:12:48,912 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 14:12:48,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:48,926 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 26 statements into 2 equivalence classes. [2025-02-08 14:12:48,938 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 14:12:48,938 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 14:12:48,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:49,177 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:49,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:49,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795752190] [2025-02-08 14:12:49,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795752190] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:49,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608700240] [2025-02-08 14:12:49,178 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 14:12:49,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:49,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:49,180 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:49,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-02-08 14:12:49,257 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 26 statements into 2 equivalence classes. [2025-02-08 14:12:49,275 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 14:12:49,275 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 14:12:49,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:49,276 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 14:12:49,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:49,414 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:49,414 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:49,527 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:49,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608700240] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:49,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:49,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 29 [2025-02-08 14:12:49,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126126443] [2025-02-08 14:12:49,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:49,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-02-08 14:12:49,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:49,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-02-08 14:12:49,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=748, Unknown=0, NotChecked=0, Total=870 [2025-02-08 14:12:49,685 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 56 [2025-02-08 14:12:49,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 62 transitions, 473 flow. Second operand has 30 states, 30 states have (on average 9.366666666666667) internal successors, (281), 30 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:49,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:49,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 56 [2025-02-08 14:12:49,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:49,991 INFO L124 PetriNetUnfolderBase]: 833/1426 cut-off events. [2025-02-08 14:12:49,991 INFO L125 PetriNetUnfolderBase]: For 1421/1426 co-relation queries the response was YES. [2025-02-08 14:12:49,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4380 conditions, 1426 events. 833/1426 cut-off events. For 1421/1426 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7117 event pairs, 828 based on Foata normal form. 6/1370 useless extension candidates. Maximal degree in co-relation 4243. Up to 1318 conditions per place. [2025-02-08 14:12:49,996 INFO L140 encePairwiseOnDemand]: 49/56 looper letters, 23 selfloop transitions, 29 changer transitions 0/58 dead transitions. [2025-02-08 14:12:49,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 58 transitions, 543 flow [2025-02-08 14:12:49,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 14:12:49,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-08 14:12:49,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 166 transitions. [2025-02-08 14:12:49,997 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.18526785714285715 [2025-02-08 14:12:49,997 INFO L175 Difference]: Start difference. First operand has 117 places, 62 transitions, 473 flow. Second operand 16 states and 166 transitions. [2025-02-08 14:12:49,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 58 transitions, 543 flow [2025-02-08 14:12:50,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 58 transitions, 469 flow, removed 8 selfloop flow, removed 16 redundant places. [2025-02-08 14:12:50,001 INFO L231 Difference]: Finished difference. Result has 90 places, 58 transitions, 423 flow [2025-02-08 14:12:50,001 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=423, PETRI_PLACES=90, PETRI_TRANSITIONS=58} [2025-02-08 14:12:50,002 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 31 predicate places. [2025-02-08 14:12:50,002 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 58 transitions, 423 flow [2025-02-08 14:12:50,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.366666666666667) internal successors, (281), 30 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:50,002 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:50,002 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:50,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-02-08 14:12:50,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2025-02-08 14:12:50,203 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:50,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:50,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1785997339, now seen corresponding path program 5 times [2025-02-08 14:12:50,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:50,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855149527] [2025-02-08 14:12:50,203 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 14:12:50,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:50,210 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 29 statements into 5 equivalence classes. [2025-02-08 14:12:50,226 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 14:12:50,226 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-02-08 14:12:50,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:51,181 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:51,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:51,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855149527] [2025-02-08 14:12:51,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855149527] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:51,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922798260] [2025-02-08 14:12:51,181 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 14:12:51,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:51,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:51,183 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:51,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-02-08 14:12:51,277 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 29 statements into 5 equivalence classes. [2025-02-08 14:12:51,307 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 14:12:51,307 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-02-08 14:12:51,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:51,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 52 conjuncts are in the unsatisfiable core [2025-02-08 14:12:51,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:51,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:12:51,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-08 14:12:51,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2025-02-08 14:12:51,739 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:51,739 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:52,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2025-02-08 14:12:52,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 994 treesize of output 946 [2025-02-08 14:12:52,315 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 21 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:52,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922798260] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:52,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:52,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 44 [2025-02-08 14:12:52,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069186051] [2025-02-08 14:12:52,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:52,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-02-08 14:12:52,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:52,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-02-08 14:12:52,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=1788, Unknown=0, NotChecked=0, Total=2070 [2025-02-08 14:12:52,898 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 56 [2025-02-08 14:12:52,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 58 transitions, 423 flow. Second operand has 46 states, 46 states have (on average 9.41304347826087) internal successors, (433), 46 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:52,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:52,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 56 [2025-02-08 14:12:52,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:54,016 INFO L124 PetriNetUnfolderBase]: 1895/3293 cut-off events. [2025-02-08 14:12:54,016 INFO L125 PetriNetUnfolderBase]: For 2642/2652 co-relation queries the response was YES. [2025-02-08 14:12:54,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9664 conditions, 3293 events. 1895/3293 cut-off events. For 2642/2652 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 20002 event pairs, 882 based on Foata normal form. 84/3367 useless extension candidates. Maximal degree in co-relation 5691. Up to 777 conditions per place. [2025-02-08 14:12:54,027 INFO L140 encePairwiseOnDemand]: 44/56 looper letters, 84 selfloop transitions, 48 changer transitions 0/138 dead transitions. [2025-02-08 14:12:54,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 138 transitions, 1050 flow [2025-02-08 14:12:54,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-08 14:12:54,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-02-08 14:12:54,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 320 transitions. [2025-02-08 14:12:54,028 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.22857142857142856 [2025-02-08 14:12:54,028 INFO L175 Difference]: Start difference. First operand has 90 places, 58 transitions, 423 flow. Second operand 25 states and 320 transitions. [2025-02-08 14:12:54,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 138 transitions, 1050 flow [2025-02-08 14:12:54,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 138 transitions, 920 flow, removed 0 selfloop flow, removed 14 redundant places. [2025-02-08 14:12:54,037 INFO L231 Difference]: Finished difference. Result has 105 places, 81 transitions, 670 flow [2025-02-08 14:12:54,037 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=670, PETRI_PLACES=105, PETRI_TRANSITIONS=81} [2025-02-08 14:12:54,037 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 46 predicate places. [2025-02-08 14:12:54,037 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 81 transitions, 670 flow [2025-02-08 14:12:54,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 9.41304347826087) internal successors, (433), 46 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:54,038 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:54,038 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:54,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-02-08 14:12:54,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-02-08 14:12:54,238 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:54,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:54,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1785997341, now seen corresponding path program 2 times [2025-02-08 14:12:54,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:54,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596066903] [2025-02-08 14:12:54,239 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:12:54,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:54,246 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 2 equivalence classes. [2025-02-08 14:12:54,255 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 14:12:54,255 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:12:54,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:55,110 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 35 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:12:55,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:12:55,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596066903] [2025-02-08 14:12:55,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596066903] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:12:55,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543147204] [2025-02-08 14:12:55,111 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:12:55,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:12:55,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:12:55,113 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:12:55,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-02-08 14:12:55,189 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 2 equivalence classes. [2025-02-08 14:12:55,211 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 14:12:55,211 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:12:55,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:12:55,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 69 conjuncts are in the unsatisfiable core [2025-02-08 14:12:55,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:12:55,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 14:12:55,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:12:55,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2025-02-08 14:12:55,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2025-02-08 14:12:55,447 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:12:55,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-08 14:12:55,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2025-02-08 14:12:55,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2025-02-08 14:12:55,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2025-02-08 14:12:55,884 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:55,884 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:12:56,706 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:12:56,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 55 [2025-02-08 14:12:56,719 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:12:56,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 69 [2025-02-08 14:12:56,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2025-02-08 14:12:56,829 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 15 proven. 31 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:12:56,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543147204] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:12:56,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:12:56,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 15] total 41 [2025-02-08 14:12:56,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269794800] [2025-02-08 14:12:56,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:12:56,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2025-02-08 14:12:56,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:12:56,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2025-02-08 14:12:56,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1648, Unknown=6, NotChecked=0, Total=1806 [2025-02-08 14:12:57,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 56 [2025-02-08 14:12:57,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 81 transitions, 670 flow. Second operand has 43 states, 43 states have (on average 4.953488372093023) internal successors, (213), 43 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:57,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:12:57,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 56 [2025-02-08 14:12:57,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:12:59,422 INFO L124 PetriNetUnfolderBase]: 3275/5140 cut-off events. [2025-02-08 14:12:59,422 INFO L125 PetriNetUnfolderBase]: For 2607/2607 co-relation queries the response was YES. [2025-02-08 14:12:59,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15690 conditions, 5140 events. 3275/5140 cut-off events. For 2607/2607 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 26402 event pairs, 1775 based on Foata normal form. 0/4351 useless extension candidates. Maximal degree in co-relation 10242. Up to 2070 conditions per place. [2025-02-08 14:12:59,436 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 86 selfloop transitions, 47 changer transitions 0/133 dead transitions. [2025-02-08 14:12:59,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 133 transitions, 1041 flow [2025-02-08 14:12:59,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-02-08 14:12:59,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2025-02-08 14:12:59,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 214 transitions. [2025-02-08 14:12:59,437 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.11941964285714286 [2025-02-08 14:12:59,437 INFO L175 Difference]: Start difference. First operand has 105 places, 81 transitions, 670 flow. Second operand 32 states and 214 transitions. [2025-02-08 14:12:59,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 133 transitions, 1041 flow [2025-02-08 14:12:59,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 133 transitions, 1006 flow, removed 7 selfloop flow, removed 2 redundant places. [2025-02-08 14:12:59,447 INFO L231 Difference]: Finished difference. Result has 135 places, 79 transitions, 714 flow [2025-02-08 14:12:59,447 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=714, PETRI_PLACES=135, PETRI_TRANSITIONS=79} [2025-02-08 14:12:59,447 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 76 predicate places. [2025-02-08 14:12:59,447 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 79 transitions, 714 flow [2025-02-08 14:12:59,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 4.953488372093023) internal successors, (213), 43 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:12:59,447 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:12:59,448 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:12:59,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-02-08 14:12:59,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-02-08 14:12:59,648 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:12:59,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:12:59,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1785997342, now seen corresponding path program 2 times [2025-02-08 14:12:59,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:12:59,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699682225] [2025-02-08 14:12:59,649 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:12:59,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:12:59,654 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 2 equivalence classes. [2025-02-08 14:12:59,672 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 14:12:59,672 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:12:59,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:00,481 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:00,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:00,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699682225] [2025-02-08 14:13:00,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699682225] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:00,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155465336] [2025-02-08 14:13:00,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:13:00,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:00,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:00,484 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:13:00,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-02-08 14:13:00,561 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 2 equivalence classes. [2025-02-08 14:13:00,580 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 14:13:00,580 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:13:00,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:00,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 67 conjuncts are in the unsatisfiable core [2025-02-08 14:13:00,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:00,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 14:13:00,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:13:00,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-08 14:13:00,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2025-02-08 14:13:00,809 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:13:00,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-08 14:13:00,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2025-02-08 14:13:00,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2025-02-08 14:13:01,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2025-02-08 14:13:01,240 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:01,240 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:02,133 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:13:02,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 53 [2025-02-08 14:13:02,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:13:02,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 59 [2025-02-08 14:13:02,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2025-02-08 14:13:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 17 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:02,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155465336] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:02,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:02,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 15] total 44 [2025-02-08 14:13:02,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109370467] [2025-02-08 14:13:02,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:02,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-02-08 14:13:02,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:02,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-02-08 14:13:02,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1882, Unknown=5, NotChecked=0, Total=2070 [2025-02-08 14:13:02,560 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 56 [2025-02-08 14:13:02,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 79 transitions, 714 flow. Second operand has 46 states, 46 states have (on average 4.891304347826087) internal successors, (225), 46 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:13:02,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:02,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 56 [2025-02-08 14:13:02,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:04,792 INFO L124 PetriNetUnfolderBase]: 2930/4627 cut-off events. [2025-02-08 14:13:04,793 INFO L125 PetriNetUnfolderBase]: For 3800/3800 co-relation queries the response was YES. [2025-02-08 14:13:04,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14129 conditions, 4627 events. 2930/4627 cut-off events. For 3800/3800 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 23047 event pairs, 1775 based on Foata normal form. 168/4181 useless extension candidates. Maximal degree in co-relation 9867. Up to 2070 conditions per place. [2025-02-08 14:13:04,806 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 83 selfloop transitions, 44 changer transitions 3/130 dead transitions. [2025-02-08 14:13:04,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 130 transitions, 1072 flow [2025-02-08 14:13:04,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-02-08 14:13:04,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2025-02-08 14:13:04,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 213 transitions. [2025-02-08 14:13:04,807 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.11886160714285714 [2025-02-08 14:13:04,807 INFO L175 Difference]: Start difference. First operand has 135 places, 79 transitions, 714 flow. Second operand 32 states and 213 transitions. [2025-02-08 14:13:04,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 130 transitions, 1072 flow [2025-02-08 14:13:04,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 130 transitions, 898 flow, removed 8 selfloop flow, removed 34 redundant places. [2025-02-08 14:13:04,821 INFO L231 Difference]: Finished difference. Result has 131 places, 73 transitions, 557 flow [2025-02-08 14:13:04,821 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=509, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=557, PETRI_PLACES=131, PETRI_TRANSITIONS=73} [2025-02-08 14:13:04,822 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 72 predicate places. [2025-02-08 14:13:04,822 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 73 transitions, 557 flow [2025-02-08 14:13:04,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.891304347826087) internal successors, (225), 46 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:13:04,823 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:04,823 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:04,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-02-08 14:13:05,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-02-08 14:13:05,023 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:13:05,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:05,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1418665081, now seen corresponding path program 6 times [2025-02-08 14:13:05,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:05,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125812113] [2025-02-08 14:13:05,024 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 14:13:05,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:05,037 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 32 statements into 6 equivalence classes. [2025-02-08 14:13:05,051 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 32 of 32 statements. [2025-02-08 14:13:05,052 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-02-08 14:13:05,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:05,288 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 14 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:05,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:05,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125812113] [2025-02-08 14:13:05,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125812113] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:05,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092394686] [2025-02-08 14:13:05,288 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 14:13:05,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:05,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:05,290 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:13:05,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-02-08 14:13:05,371 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 32 statements into 6 equivalence classes. [2025-02-08 14:13:05,393 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 32 of 32 statements. [2025-02-08 14:13:05,393 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-02-08 14:13:05,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:05,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-08 14:13:05,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 21 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:05,572 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 31 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:05,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092394686] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:05,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:05,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 38 [2025-02-08 14:13:05,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404342717] [2025-02-08 14:13:05,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:05,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2025-02-08 14:13:05,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:05,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2025-02-08 14:13:05,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1293, Unknown=0, NotChecked=0, Total=1482 [2025-02-08 14:13:05,969 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 56 [2025-02-08 14:13:05,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 73 transitions, 557 flow. Second operand has 39 states, 39 states have (on average 9.282051282051283) internal successors, (362), 39 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:13:05,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:05,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 56 [2025-02-08 14:13:05,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:06,399 INFO L124 PetriNetUnfolderBase]: 1066/1881 cut-off events. [2025-02-08 14:13:06,399 INFO L125 PetriNetUnfolderBase]: For 2451/2456 co-relation queries the response was YES. [2025-02-08 14:13:06,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6276 conditions, 1881 events. 1066/1881 cut-off events. For 2451/2456 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 10651 event pairs, 1062 based on Foata normal form. 6/1872 useless extension candidates. Maximal degree in co-relation 4818. Up to 1703 conditions per place. [2025-02-08 14:13:06,406 INFO L140 encePairwiseOnDemand]: 49/56 looper letters, 25 selfloop transitions, 40 changer transitions 0/71 dead transitions. [2025-02-08 14:13:06,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 71 transitions, 661 flow [2025-02-08 14:13:06,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-08 14:13:06,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-08 14:13:06,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 210 transitions. [2025-02-08 14:13:06,408 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.1875 [2025-02-08 14:13:06,408 INFO L175 Difference]: Start difference. First operand has 131 places, 73 transitions, 557 flow. Second operand 20 states and 210 transitions. [2025-02-08 14:13:06,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 71 transitions, 661 flow [2025-02-08 14:13:06,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 71 transitions, 573 flow, removed 4 selfloop flow, removed 30 redundant places. [2025-02-08 14:13:06,415 INFO L231 Difference]: Finished difference. Result has 119 places, 71 transitions, 523 flow [2025-02-08 14:13:06,415 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=523, PETRI_PLACES=119, PETRI_TRANSITIONS=71} [2025-02-08 14:13:06,415 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 60 predicate places. [2025-02-08 14:13:06,415 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 71 transitions, 523 flow [2025-02-08 14:13:06,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 9.282051282051283) internal successors, (362), 39 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:13:06,416 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:06,416 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:06,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2025-02-08 14:13:06,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-02-08 14:13:06,617 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting thread3Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:13:06,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:06,617 INFO L85 PathProgramCache]: Analyzing trace with hash -428492642, now seen corresponding path program 3 times [2025-02-08 14:13:06,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:06,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996632579] [2025-02-08 14:13:06,617 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:13:06,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:06,627 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 35 statements into 6 equivalence classes. [2025-02-08 14:13:06,645 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 35 of 35 statements. [2025-02-08 14:13:06,645 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-08 14:13:06,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 13 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:08,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:08,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996632579] [2025-02-08 14:13:08,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996632579] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:08,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591394997] [2025-02-08 14:13:08,089 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:13:08,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:08,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:08,091 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:13:08,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-02-08 14:13:08,173 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 35 statements into 6 equivalence classes. [2025-02-08 14:13:08,285 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 35 of 35 statements. [2025-02-08 14:13:08,285 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-08 14:13:08,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:08,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 83 conjuncts are in the unsatisfiable core [2025-02-08 14:13:08,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:08,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 14:13:08,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:13:08,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2025-02-08 14:13:08,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2025-02-08 14:13:08,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 37 [2025-02-08 14:13:08,588 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:13:08,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-08 14:13:08,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 34 [2025-02-08 14:13:08,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 34 [2025-02-08 14:13:08,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 34 [2025-02-08 14:13:09,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 34 [2025-02-08 14:13:09,361 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:09,361 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:10,882 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:13:10,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 52 treesize of output 68 [2025-02-08 14:13:10,902 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:13:10,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 89 treesize of output 84 [2025-02-08 14:13:10,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2025-02-08 14:13:10,985 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 28 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:10,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591394997] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:10,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:10,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 20] total 61 [2025-02-08 14:13:10,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930731945] [2025-02-08 14:13:10,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:10,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2025-02-08 14:13:10,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:10,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2025-02-08 14:13:10,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=3652, Unknown=0, NotChecked=0, Total=3906 [2025-02-08 14:13:12,496 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 56 [2025-02-08 14:13:12,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 71 transitions, 523 flow. Second operand has 63 states, 63 states have (on average 8.285714285714286) internal successors, (522), 63 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:13:12,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:12,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 56 [2025-02-08 14:13:12,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:17,561 INFO L124 PetriNetUnfolderBase]: 1661/2735 cut-off events. [2025-02-08 14:13:17,561 INFO L125 PetriNetUnfolderBase]: For 1522/1522 co-relation queries the response was YES. [2025-02-08 14:13:17,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8462 conditions, 2735 events. 1661/2735 cut-off events. For 1522/1522 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 14361 event pairs, 936 based on Foata normal form. 74/2804 useless extension candidates. Maximal degree in co-relation 6880. Up to 1209 conditions per place. [2025-02-08 14:13:17,571 INFO L140 encePairwiseOnDemand]: 45/56 looper letters, 91 selfloop transitions, 51 changer transitions 0/146 dead transitions. [2025-02-08 14:13:17,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 146 transitions, 1072 flow [2025-02-08 14:13:17,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-02-08 14:13:17,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2025-02-08 14:13:17,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 424 transitions. [2025-02-08 14:13:17,572 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.18466898954703834 [2025-02-08 14:13:17,572 INFO L175 Difference]: Start difference. First operand has 119 places, 71 transitions, 523 flow. Second operand 41 states and 424 transitions. [2025-02-08 14:13:17,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 146 transitions, 1072 flow [2025-02-08 14:13:17,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 146 transitions, 968 flow, removed 1 selfloop flow, removed 20 redundant places. [2025-02-08 14:13:17,577 INFO L231 Difference]: Finished difference. Result has 143 places, 80 transitions, 639 flow [2025-02-08 14:13:17,578 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=639, PETRI_PLACES=143, PETRI_TRANSITIONS=80} [2025-02-08 14:13:17,578 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 84 predicate places. [2025-02-08 14:13:17,578 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 80 transitions, 639 flow [2025-02-08 14:13:17,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 8.285714285714286) internal successors, (522), 63 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:13:17,578 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:17,578 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:17,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-02-08 14:13:17,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:17,779 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting thread3Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:13:17,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:17,779 INFO L85 PathProgramCache]: Analyzing trace with hash -428492644, now seen corresponding path program 7 times [2025-02-08 14:13:17,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:17,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231437339] [2025-02-08 14:13:17,779 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 14:13:17,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:17,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-08 14:13:17,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-08 14:13:17,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:17,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:18,835 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:18,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:18,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231437339] [2025-02-08 14:13:18,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231437339] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:18,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192380409] [2025-02-08 14:13:18,836 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 14:13:18,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:18,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:18,838 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:13:18,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-02-08 14:13:18,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-02-08 14:13:19,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-02-08 14:13:19,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:13:19,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:19,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 71 conjuncts are in the unsatisfiable core [2025-02-08 14:13:19,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:19,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:13:19,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-08 14:13:19,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2025-02-08 14:13:19,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2025-02-08 14:13:19,650 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:19,650 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:20,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 40 [2025-02-08 14:13:20,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2082 treesize of output 2034 [2025-02-08 14:13:20,731 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 33 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:20,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192380409] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:20,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:20,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 57 [2025-02-08 14:13:20,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905308984] [2025-02-08 14:13:20,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:20,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2025-02-08 14:13:20,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:20,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2025-02-08 14:13:20,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=3025, Unknown=0, NotChecked=0, Total=3422 [2025-02-08 14:13:21,935 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 56 [2025-02-08 14:13:21,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 80 transitions, 639 flow. Second operand has 59 states, 59 states have (on average 9.322033898305085) internal successors, (550), 59 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:13:21,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:21,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 56 [2025-02-08 14:13:21,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:24,254 INFO L124 PetriNetUnfolderBase]: 2292/4055 cut-off events. [2025-02-08 14:13:24,255 INFO L125 PetriNetUnfolderBase]: For 5876/5918 co-relation queries the response was YES. [2025-02-08 14:13:24,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13800 conditions, 4055 events. 2292/4055 cut-off events. For 5876/5918 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 24993 event pairs, 1062 based on Foata normal form. 153/4188 useless extension candidates. Maximal degree in co-relation 12210. Up to 1199 conditions per place. [2025-02-08 14:13:24,276 INFO L140 encePairwiseOnDemand]: 44/56 looper letters, 85 selfloop transitions, 71 changer transitions 0/163 dead transitions. [2025-02-08 14:13:24,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 163 transitions, 1395 flow [2025-02-08 14:13:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-02-08 14:13:24,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2025-02-08 14:13:24,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 402 transitions. [2025-02-08 14:13:24,277 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2111344537815126 [2025-02-08 14:13:24,277 INFO L175 Difference]: Start difference. First operand has 143 places, 80 transitions, 639 flow. Second operand 34 states and 402 transitions. [2025-02-08 14:13:24,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 163 transitions, 1395 flow [2025-02-08 14:13:24,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 163 transitions, 1302 flow, removed 12 selfloop flow, removed 25 redundant places. [2025-02-08 14:13:24,309 INFO L231 Difference]: Finished difference. Result has 156 places, 108 transitions, 1080 flow [2025-02-08 14:13:24,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=1080, PETRI_PLACES=156, PETRI_TRANSITIONS=108} [2025-02-08 14:13:24,310 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 97 predicate places. [2025-02-08 14:13:24,310 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 108 transitions, 1080 flow [2025-02-08 14:13:24,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 9.322033898305085) internal successors, (550), 59 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:13:24,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:24,310 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:24,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2025-02-08 14:13:24,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:24,511 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting thread3Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:13:24,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:24,512 INFO L85 PathProgramCache]: Analyzing trace with hash -428492641, now seen corresponding path program 3 times [2025-02-08 14:13:24,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:24,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949679750] [2025-02-08 14:13:24,512 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:13:24,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:24,523 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 35 statements into 6 equivalence classes. [2025-02-08 14:13:24,549 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 35 of 35 statements. [2025-02-08 14:13:24,550 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-08 14:13:24,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:26,153 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 11 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:26,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:26,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949679750] [2025-02-08 14:13:26,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949679750] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:26,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358411639] [2025-02-08 14:13:26,153 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:13:26,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:26,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:26,155 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:13:26,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-02-08 14:13:26,248 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 35 statements into 6 equivalence classes. [2025-02-08 14:13:26,355 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 35 of 35 statements. [2025-02-08 14:13:26,356 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-02-08 14:13:26,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:26,358 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 82 conjuncts are in the unsatisfiable core [2025-02-08 14:13:26,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:26,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-08 14:13:26,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-08 14:13:26,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-08 14:13:26,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2025-02-08 14:13:26,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2025-02-08 14:13:26,676 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-08 14:13:26,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-08 14:13:26,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2025-02-08 14:13:26,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2025-02-08 14:13:26,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2025-02-08 14:13:27,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2025-02-08 14:13:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:27,561 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:29,263 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:13:29,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 66 [2025-02-08 14:13:29,277 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 14:13:29,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 77 treesize of output 72 [2025-02-08 14:13:29,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2025-02-08 14:13:29,366 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 28 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:13:29,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358411639] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:29,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:29,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 20] total 59 [2025-02-08 14:13:29,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441956060] [2025-02-08 14:13:29,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:29,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2025-02-08 14:13:29,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:29,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2025-02-08 14:13:29,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=3409, Unknown=0, NotChecked=0, Total=3660 [2025-02-08 14:13:31,603 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 56 [2025-02-08 14:13:31,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 108 transitions, 1080 flow. Second operand has 61 states, 61 states have (on average 8.295081967213115) internal successors, (506), 61 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:13:31,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:31,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 56 [2025-02-08 14:13:31,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:13:36,852 INFO L124 PetriNetUnfolderBase]: 2508/4166 cut-off events. [2025-02-08 14:13:36,852 INFO L125 PetriNetUnfolderBase]: For 6341/6341 co-relation queries the response was YES. [2025-02-08 14:13:36,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13800 conditions, 4166 events. 2508/4166 cut-off events. For 6341/6341 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 23685 event pairs, 1494 based on Foata normal form. 148/4304 useless extension candidates. Maximal degree in co-relation 12438. Up to 1813 conditions per place. [2025-02-08 14:13:36,868 INFO L140 encePairwiseOnDemand]: 45/56 looper letters, 93 selfloop transitions, 72 changer transitions 2/171 dead transitions. [2025-02-08 14:13:36,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 171 transitions, 1527 flow [2025-02-08 14:13:36,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-02-08 14:13:36,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2025-02-08 14:13:36,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 414 transitions. [2025-02-08 14:13:36,870 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.18482142857142858 [2025-02-08 14:13:36,870 INFO L175 Difference]: Start difference. First operand has 156 places, 108 transitions, 1080 flow. Second operand 40 states and 414 transitions. [2025-02-08 14:13:36,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 171 transitions, 1527 flow [2025-02-08 14:13:36,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 171 transitions, 1468 flow, removed 6 selfloop flow, removed 11 redundant places. [2025-02-08 14:13:36,901 INFO L231 Difference]: Finished difference. Result has 183 places, 102 transitions, 1074 flow [2025-02-08 14:13:36,901 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=957, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=1074, PETRI_PLACES=183, PETRI_TRANSITIONS=102} [2025-02-08 14:13:36,901 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 124 predicate places. [2025-02-08 14:13:36,901 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 102 transitions, 1074 flow [2025-02-08 14:13:36,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 8.295081967213115) internal successors, (506), 61 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:13:36,901 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:13:36,902 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:13:36,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2025-02-08 14:13:37,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:37,102 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 40 more)] === [2025-02-08 14:13:37,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:13:37,102 INFO L85 PathProgramCache]: Analyzing trace with hash -345451270, now seen corresponding path program 3 times [2025-02-08 14:13:37,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:13:37,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867917566] [2025-02-08 14:13:37,103 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:13:37,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:13:37,111 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 35 statements into 6 equivalence classes. [2025-02-08 14:13:37,156 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 32 of 35 statements. [2025-02-08 14:13:37,156 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-02-08 14:13:37,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:37,833 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 14 proven. 62 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:13:37,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:13:37,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867917566] [2025-02-08 14:13:37,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867917566] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:13:37,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39043852] [2025-02-08 14:13:37,833 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 14:13:37,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:13:37,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:13:37,835 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:13:37,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-02-08 14:13:37,921 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 35 statements into 6 equivalence classes. [2025-02-08 14:13:38,044 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 32 of 35 statements. [2025-02-08 14:13:38,044 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-02-08 14:13:38,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:13:38,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 53 conjuncts are in the unsatisfiable core [2025-02-08 14:13:38,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:13:38,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-02-08 14:13:38,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2025-02-08 14:13:38,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 35 [2025-02-08 14:13:38,856 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 35 proven. 41 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:13:38,856 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:13:39,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2025-02-08 14:13:39,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1250 treesize of output 1202 [2025-02-08 14:13:39,724 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 22 proven. 54 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 14:13:39,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39043852] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:13:39,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:13:39,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 51 [2025-02-08 14:13:39,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048897851] [2025-02-08 14:13:39,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:13:39,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2025-02-08 14:13:39,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:13:39,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2025-02-08 14:13:39,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=2440, Unknown=0, NotChecked=0, Total=2756 [2025-02-08 14:13:40,566 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 56 [2025-02-08 14:13:40,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 102 transitions, 1074 flow. Second operand has 53 states, 53 states have (on average 8.415094339622641) internal successors, (446), 53 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:13:40,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:13:40,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 56 [2025-02-08 14:13:40,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand